JPH0346023B2 - - Google Patents
Info
- Publication number
- JPH0346023B2 JPH0346023B2 JP8265385A JP8265385A JPH0346023B2 JP H0346023 B2 JPH0346023 B2 JP H0346023B2 JP 8265385 A JP8265385 A JP 8265385A JP 8265385 A JP8265385 A JP 8265385A JP H0346023 B2 JPH0346023 B2 JP H0346023B2
- Authority
- JP
- Japan
- Prior art keywords
- weight
- glass fibers
- polycarbonate resin
- ultrashort
- parts
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000003365 glass fiber Substances 0.000 claims description 29
- 239000004431 polycarbonate resin Substances 0.000 claims description 18
- 229920005668 polycarbonate resin Polymers 0.000 claims description 18
- 239000000203 mixture Substances 0.000 claims description 14
- 239000000835 fiber Substances 0.000 claims description 9
- 239000011521 glass Substances 0.000 claims description 8
- 125000004432 carbon atom Chemical group C* 0.000 claims description 6
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 4
- 229910052739 hydrogen Inorganic materials 0.000 claims description 4
- 239000001257 hydrogen Substances 0.000 claims description 4
- 125000000217 alkyl group Chemical group 0.000 claims description 3
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 8
- 150000002989 phenols Chemical class 0.000 description 7
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 5
- 238000002156 mixing Methods 0.000 description 4
- 239000002243 precursor Substances 0.000 description 4
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 229920001610 polycaprolactone Polymers 0.000 description 3
- 239000004632 polycaprolactone Substances 0.000 description 3
- 229920000515 polycarbonate Polymers 0.000 description 3
- 239000004417 polycarbonate Substances 0.000 description 3
- VPWNQTHUCYMVMZ-UHFFFAOYSA-N 4,4'-sulfonyldiphenol Chemical class C1=CC(O)=CC=C1S(=O)(=O)C1=CC=C(O)C=C1 VPWNQTHUCYMVMZ-UHFFFAOYSA-N 0.000 description 2
- QIGBRXMKCJKVMJ-UHFFFAOYSA-N Hydroquinone Chemical compound OC1=CC=C(O)C=C1 QIGBRXMKCJKVMJ-UHFFFAOYSA-N 0.000 description 2
- YGYAWVDWMABLBF-UHFFFAOYSA-N Phosgene Chemical compound ClC(Cl)=O YGYAWVDWMABLBF-UHFFFAOYSA-N 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- 125000001118 alkylidene group Chemical group 0.000 description 2
- UORVGPXVDQYIDP-UHFFFAOYSA-N borane Chemical compound B UORVGPXVDQYIDP-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 125000004464 hydroxyphenyl group Chemical group 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- VWGKEVWFBOUAND-UHFFFAOYSA-N 4,4'-thiodiphenol Chemical group C1=CC(O)=CC=C1SC1=CC=C(O)C=C1 VWGKEVWFBOUAND-UHFFFAOYSA-N 0.000 description 1
- NZGQHKSLKRFZFL-UHFFFAOYSA-N 4-(4-hydroxyphenoxy)phenol Chemical compound C1=CC(O)=CC=C1OC1=CC=C(O)C=C1 NZGQHKSLKRFZFL-UHFFFAOYSA-N 0.000 description 1
- RQCACQIALULDSK-UHFFFAOYSA-N 4-(4-hydroxyphenyl)sulfinylphenol Chemical compound C1=CC(O)=CC=C1S(=O)C1=CC=C(O)C=C1 RQCACQIALULDSK-UHFFFAOYSA-N 0.000 description 1
- 229930185605 Bisphenol Natural products 0.000 description 1
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical group [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 1
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 1
- KYPYTERUKNKOLP-UHFFFAOYSA-N Tetrachlorobisphenol A Chemical compound C=1C(Cl)=C(O)C(Cl)=CC=1C(C)(C)C1=CC(Cl)=C(O)C(Cl)=C1 KYPYTERUKNKOLP-UHFFFAOYSA-N 0.000 description 1
- 239000000370 acceptor Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 125000002947 alkylene group Chemical group 0.000 description 1
- 150000001491 aromatic compounds Chemical class 0.000 description 1
- VCCBEIPGXKNHFW-UHFFFAOYSA-N biphenyl-4,4'-diol Chemical group C1=CC(O)=CC=C1C1=CC=C(O)C=C1 VCCBEIPGXKNHFW-UHFFFAOYSA-N 0.000 description 1
- 229910000085 borane Inorganic materials 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 150000001924 cycloalkanes Chemical class 0.000 description 1
- 125000002993 cycloalkylene group Chemical group 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 229920001519 homopolymer Polymers 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 239000003348 petrochemical agent Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 238000005809 transesterification reaction Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Description
〔産業上の利用分野〕
本発明はポリカーボネート樹脂組成物に関し、
特に機械的特性が優れ、かつ成形品とした場合の
光沢、表面外観が良好なポリカーボネート樹脂組
成物に関する。
〔従来技術及び発明が解決しようとする問題点〕
従来よりガラス繊維強化ポリカーボネート樹脂
は非強化ポリカーボネート樹脂に比べ、熱変形温
度、剛性、寸法安定性に優れているということは
知られているが、ガラス繊維の配向により異方性
が発現するため、製品設計上問題がある。また、
ガラス極短繊維をガラス短繊維に置かえて配合す
れば、異方性は改善され、外観も改善されるが、
逆に耐衝撃性が低下するという問題点がある。そ
こで、耐衝撃性の低下をポリエチレン系ワツクス
を添加することによつて防止しようとする試み
（特開昭57−94040号）がなされているが、未だ十
分とは言えず、しかもこの場合は得られる成形品
の光沢が悪いという欠点がある。
一方、ポリカーボネート樹脂にポリカプロラク
トンを配合して離形性を向上させた組成物が特開
昭51−58457号、特開昭51−143058号により知ら
れているが、機械的特性については何ら考案がな
されていない。
そこで、本発明者らはガラス繊維強化ポリカー
ボネート樹脂の持つ剛性、耐衝撃性を損うことな
く、成形品の光沢、表面外観を向上すべく鋭意検
討を重ねた。
〔問題点を解決するための手段〕
その結果、ガラス短繊維とガラス極短繊維を一
定割合で配合し、かつポリラクトンを少量配合す
ることにより、上記目的を達成しうることを見出
し、本発明を完成した。
すなわち本発明は、(A)ポリカーボネート樹脂50
〜98重量％と(B)平均繊維長1.0〜10mmのガラス短
繊維および(C)平均繊維長0.02〜0.5mmのガラス極
短繊維の合計量50〜２重量％からなり、該ガラス
短繊維(B)と該ガラス極短繊維(C)の重量比(B)／(C)が
１／３〜10／１である組成物100重量部に対して、
ポリラクトン0.01〜５重量部を配合したことを特
徴とするポリカーボネート樹脂組成物である。
本発明において用いるポリカーボネート樹脂は
下記一般式
（ここで、Ｚは結合または炭素数１〜８のアルキ
レン、炭素数２〜８のアルキリデン、炭素数５〜
15のシクロアルキレン、炭素数５〜15のシクロア
ルキリデン、SO2，SO，Ｏ，COまたは
基を意味し、Ｒは水素、塩素もしくは臭素原子ま
たは１〜８個の炭素原子を有する飽和アルキル基
を意味し、ｍは０〜４の数を示す。）
で表わされる構造単位を有する重合体である。
このポリカーボネート樹脂は溶剤法、すなわち
塩化メチレン等の溶剤中で、公知の酸受容体、分
子量調整剤の存在下、二価フエノールとホスゲン
のようなカーボネート前駆体との反応または二価
フエノールとジフエニルカーボネートのようなカ
ーボネート前駆体とのエステル交換反応によつて
製造することができる。
ここで、好適に使用し得る二価フエノールとし
てはビスフエノール類があり、特に２，２−ビス
（４−ヒドロキシフエニル）プロパン（ビスフエ
ノールＡ）が好ましい。また、ビスフエノールＡ
の一部または全部を他の二価フエノールで置換し
たものであつてもよい。ビスフエノールＡ以外の
二価フエノールとしては、例えばハイドロキノ
ン、４，4′−ジヒドロキシジフエニル、ビス（４
−ヒドロキシフエニル）アルカン、ビス（４−ヒ
ドロキシフエニル）シクロアルカン、ビス（４−
ヒドロキシフエニル）スルフイド、ビス（４−ヒ
ドロキシフエニル）スルホン、ビス（４−ヒドロ
キシフエニル）スルホキシド、ビス（４−ヒドロ
キシフエニル）エーテルのような化合物またはビ
ス（２，３−ジブロモ−４−ヒドロキシフエニ
ル）プロパン、ビス（３，５−ジクロロ−４−ヒ
ドロキシフエニル）プロパンのようなハロゲン化
ビスフエノール類をあげることができる。これら
二価フエノールは二価フエノールのホモポリマー
または２種以上のコポリマー若しくはブレンド物
であつてもよい。更に、本発明で用いるポリカー
ボネート樹脂は多官能性芳香族化合物を二価フエ
ノール及び／又はカーボネート前駆体と反応させ
た熱可塑性ランダム分岐ポリカーボネートであつ
てもよい。
本発明に用いるポリカーボネート樹脂は、機械
的強度および成形性の点からして、その粘度平均
分子量（Mv）は10000〜100000のものが好まし
く、特に15000〜40000のものは好適である。
次に、ガラス短繊維(B)及びガラス極短繊維(C)と
はガラス繊維が含アルカリガラス、無アルカリガ
ラスのいずれでもよいが、特にＥガラスが好まし
い。ガラス繊維の直径は特に制限はないが、通常
１〜2μのものを使用する。なお、樹脂との親和
性を増すために、シラン処理、ボラン処理、クロ
ム処理等の表面処理をしておくことが好適であ
る。
また、ガラス短繊維(B)は平均繊維長1.0〜10mm、
好ましくは1.5〜６mmのガラス繊維であり、ガラ
ス極短繊維(C)は、平均繊維長0.02〜0.5mm、好ま
しくは0.03〜0.3mmのガラス繊維である。ここで、
ガラス極短繊維(C)の繊維長が0.02mmより短いと、
耐衝撃性が低下し、0.5mmより長いと、外観が悪
化するので好ましくない。
該ガラス短繊維(B)と該ガラス極短繊維(C)の重量
比(B)／(C)は１／３〜10／１、好ましくは１／２〜
８／１、更に好ましくは１／１〜５／１が好適で
ある。ここで(B)／(C)が１／３より小さいと、剛性
低下が大きくなり、また10／１より大きくなる
と、成形品の外観の不良となり好ましくない。
上述のポリカーボネート樹脂(A)とガラス短繊維
(B)及びガラス極短繊維(C)の配合割合は、ポリカー
ボネート樹脂(A)50〜98重量％、好ましくは65〜95
重量％とガラス短繊維(B)とガラス極短繊維(C)の合
計量(B)＋(C)50〜２重量％、好ましくは35〜５重量
％である。ここで、ガラス繊維の合計量(B)＋(C)が
50重量％を越えると、得られる成形品の外観が不
良となり、２重量％未満であると、剛性が不十分
になり好ましくない。
次に、本発明において用いるポリラクトンとは
下記一般式
（ここでR1，R2は水素または炭素数１〜５個の
アルキル基、好ましくは水素またはメチル基であ
り、ｘは２〜10、このましくは３〜８であり、ｎ
は100〜2000、好ましくは300〜1000である。）
で表わされるものであり、数平均分子量40000〜
100000のポリカプロラクトン（ｘ＝５）が特に好
適である。
ポリラクトンの配合量については、ポリカーボ
ネート樹脂(A)、ガラス短繊維(B)およびガラス極短
繊維(C)からなる上記の組成物100重量部に対して
ポリラクトンを0.01〜５重量部、好ましくは0.1
〜２重量部である。この配合量が0.01重量部より
少なくなると、成形品の光沢や外観を改良する効
果が不十分であり、５重量部より多くなると、熱
変形温度の低下が大きくなつて好ましくない。
〔発明の効果〕
本発明によつて成形品の光沢、表面外観の優れ
た、さらに耐衝撃性、曲げ弾性率等の機械的特性
の優れた、かつ耐熱性も良好なポリカーボネート
組成物が得られる。そのため、このポリカーボネ
ート組成物は電気、電子、光学機器等の部品など
として有用である。
〔実施例〕
次に、本発明を実施例により詳しく説明する。
実施例１〜８及び比較例１〜８
ポリカーボネート樹脂、ガラス短繊維、ガラス
極短繊維及びポリカプロラクトンを用意し、第１
表に示す配合割合で混合し、シリンダー温度300
℃の押出機で押出してペレツト化した。得られた
組成物について下記の試験を行なつた。結果を第
１表に示す。
試験方法
アイゾツド衝撃強さ（JIS K7110準拠）
曲げ弾性率（JIS K7203準拠）
熱変形温度（JIS K7207準拠）
光沢度（JIS K7105準拠）
表面外観：目視評価により表面が平滑で外観が
良好なものを○、ややガラス繊維の浮きがあ
るものを△、ガラス繊維の浮きが多いものを
×とした。
比較例 ９
実施例２においてポリラクトンの代りにポリエ
チレン系ワツクス（三井石油化学(株)製、「ハイワ
ツクス400P」）を用いたこと以外は実施例２と同
様の操作、試験を行なつた。結果を第１表に示
す。
[Industrial Application Field] The present invention relates to a polycarbonate resin composition,
In particular, the present invention relates to a polycarbonate resin composition that has excellent mechanical properties and has good gloss and surface appearance when molded. [Prior art and problems to be solved by the invention] It has been known that glass fiber-reinforced polycarbonate resins are superior in heat distortion temperature, rigidity, and dimensional stability compared to non-reinforced polycarbonate resins. Since anisotropy occurs due to the orientation of the glass fibers, there is a problem in product design. Also,
If ultrashort glass fibers are added to short glass fibers, the anisotropy and appearance will be improved, but
On the contrary, there is a problem in that the impact resistance decreases. Therefore, an attempt has been made to prevent the drop in impact resistance by adding polyethylene wax (Japanese Patent Application Laid-open No. 57-94040), but it is still not sufficient and, in this case, there is no benefit. The disadvantage is that the resulting molded product has poor gloss. On the other hand, compositions in which polycaprolactone is blended with polycarbonate resin to improve mold releasability are known from JP-A-51-58457 and JP-A-51-143058, but no improvements have been made regarding mechanical properties. has not been done. Therefore, the present inventors have conducted extensive studies to improve the gloss and surface appearance of molded products without impairing the rigidity and impact resistance of glass fiber reinforced polycarbonate resin. [Means for Solving the Problems] As a result, it was discovered that the above object could be achieved by blending short glass fibers and ultrashort glass fibers in a certain ratio and by blending a small amount of polylactone, and the present invention was realized. completed. That is, the present invention provides (A) polycarbonate resin 50
The short glass fibers ( For 100 parts by weight of a composition in which the weight ratio (B)/(C) of B) and the glass ultrashort fiber (C) is 1/3 to 10/1,
This is a polycarbonate resin composition characterized in that it contains 0.01 to 5 parts by weight of polylactone. The polycarbonate resin used in the present invention has the following general formula (Here, Z is a bond, or alkylene having 1 to 8 carbon atoms, alkylidene having 2 to 8 carbon atoms, or alkylidene having 5 to 8 carbon atoms.
15 cycloalkylene, C5-15 cycloalkylidene, SO 2 , SO, O, CO or R means a hydrogen, chlorine or bromine atom or a saturated alkyl group having 1 to 8 carbon atoms, and m represents a number from 0 to 4. ) It is a polymer having a structural unit represented by: This polycarbonate resin is prepared by a solvent process, i.e. by reaction of dihydric phenols with carbonate precursors such as phosgene or by reaction of dihydric phenols with carbonate precursors such as phosgene in a solvent such as methylene chloride in the presence of known acid acceptors, molecular weight modifiers, etc. It can be produced by transesterification with a carbonate precursor such as carbonate. Here, as dihydric phenols that can be suitably used, there are bisphenols, and 2,2-bis(4-hydroxyphenyl)propane (bisphenol A) is particularly preferred. Also, bisphenol A
may be partially or entirely replaced with other dihydric phenols. Examples of divalent phenols other than bisphenol A include hydroquinone, 4,4'-dihydroxydiphenyl, bis(4
-hydroxyphenyl)alkane, bis(4-hydroxyphenyl)cycloalkane, bis(4-
Compounds such as hydroxyphenyl) sulfide, bis(4-hydroxyphenyl) sulfone, bis(4-hydroxyphenyl) sulfoxide, bis(4-hydroxyphenyl) ether or bis(2,3-dibromo-4- Examples include halogenated bisphenols such as hydroxyphenyl)propane and bis(3,5-dichloro-4-hydroxyphenyl)propane. These dihydric phenols may be homopolymers or copolymers or blends of two or more dihydric phenols. Furthermore, the polycarbonate resin used in the present invention may be a thermoplastic randomly branched polycarbonate obtained by reacting a polyfunctional aromatic compound with a dihydric phenol and/or a carbonate precursor. From the viewpoint of mechanical strength and moldability, the polycarbonate resin used in the present invention preferably has a viscosity average molecular weight (Mv) of 10,000 to 100,000, particularly preferably 15,000 to 40,000. Next, the short glass fibers (B) and the very short glass fibers (C) may be either alkali-containing glass or alkali-free glass, but E glass is particularly preferred. There are no particular restrictions on the diameter of the glass fibers, but those having a diameter of 1 to 2 μm are usually used. Note that in order to increase the affinity with the resin, it is preferable to perform a surface treatment such as silane treatment, borane treatment, or chromium treatment. In addition, the short glass fiber (B) has an average fiber length of 1.0 to 10 mm,
Glass fibers are preferably 1.5 to 6 mm long, and the ultrashort glass fibers (C) are glass fibers with an average fiber length of 0.02 to 0.5 mm, preferably 0.03 to 0.3 mm. here,
If the fiber length of the glass ultrashort fiber (C) is shorter than 0.02mm,
If the length is longer than 0.5 mm, the impact resistance will decrease and the appearance will deteriorate, which is not preferable. The weight ratio (B)/(C) of the short glass fibers (B) and the very short glass fibers (C) is from 1/3 to 10/1, preferably from 1/2 to
A ratio of 8/1, more preferably 1/1 to 5/1 is suitable. If (B)/(C) is less than 1/3, the rigidity will be significantly lowered, and if it is more than 10/1, the molded product will have a poor appearance, which is not preferable. The above polycarbonate resin (A) and short glass fibers
The blending ratio of (B) and glass ultrashort fibers (C) is 50 to 98% by weight of polycarbonate resin (A), preferably 65 to 95% by weight.
The total amount of short glass fibers (B) and very short glass fibers (C) (B)+(C) is 50 to 2% by weight, preferably 35 to 5% by weight. Here, the total amount of glass fiber (B) + (C) is
If it exceeds 50% by weight, the appearance of the resulting molded product will be poor, and if it is less than 2% by weight, the rigidity will be insufficient, which is undesirable. Next, what is the polylactone used in the present invention? The following general formula (Here, R 1 and R 2 are hydrogen or an alkyl group having 1 to 5 carbon atoms, preferably hydrogen or a methyl group, x is 2 to 10, preferably 3 to 8, and n
is 100-2000, preferably 300-1000. ) and has a number average molecular weight of 40,000~
100,000 polycaprolactone (x=5) is particularly preferred. Regarding the blending amount of polylactone, it is 0.01 to 5 parts by weight, preferably 0.1 parts by weight, per 100 parts by weight of the above composition consisting of polycarbonate resin (A), short glass fibers (B), and ultrashort glass fibers (C).
~2 parts by weight. If the amount is less than 0.01 part by weight, the effect of improving the gloss and appearance of the molded product will be insufficient, and if it is more than 5 parts by weight, the heat distortion temperature will decrease undesirably. [Effects of the Invention] The present invention makes it possible to obtain a polycarbonate composition that provides molded articles with excellent gloss and surface appearance, as well as mechanical properties such as impact resistance and flexural modulus, as well as good heat resistance. . Therefore, this polycarbonate composition is useful as parts for electrical, electronic, optical equipment, etc. [Example] Next, the present invention will be explained in detail with reference to Examples. Examples 1 to 8 and Comparative Examples 1 to 8 Polycarbonate resin, short glass fibers, ultrashort glass fibers, and polycaprolactone were prepared, and the first
Mix in the proportions shown in the table, cylinder temperature 300
It was extruded into pellets using an extruder at ℃. The following tests were conducted on the resulting composition. The results are shown in Table 1. Test method Izod impact strength (conforms to JIS K7110) Flexural modulus (conforms to JIS K7203) Heat distortion temperature (conforms to JIS K7207) Glossiness (conforms to JIS K7105) Surface appearance: The surface is smooth and has a good appearance by visual evaluation. ○, those with slightly floating glass fibers were rated △, and those with a lot of floating glass fibers were rated ×. Comparative Example 9 The same operations and tests as in Example 2 were carried out, except that polyethylene wax (manufactured by Mitsui Petrochemicals, Ltd., "Hiwax 400P") was used instead of polylactone. The results are shown in Table 1.
【表】【table】
Claims (1)
均繊維長1.0〜10mmのガラス短繊維および(C)平均
繊維長0.02〜0.5mmのガラス極短繊維の合計量50
〜２重量％からなり、該ガラス短繊維(B)と該ガラ
ス極短繊維(C)の重量比(B)／(C)が１／３〜10／１で
ある組成物100重量部に対してポリラクトン0.01
〜５重量部を配合したことを特徴とするポリカー
ボネート樹脂組成物。 ２ ポリラクトンが下記の一般式で表わされるも
のである特許請求の範囲第１項記載の組成物。 （ここでR1，R2は水素または炭素数１〜５個の
アルキル基、ｘは２〜10であり、ｎは100〜2000
である。）[Claims] 1. Total amount of (A) 50 to 98% by weight of polycarbonate resin, (B) short glass fibers with an average fiber length of 1.0 to 10 mm, and (C) ultrashort glass fibers with an average fiber length of 0.02 to 0.5 mm. 50
~2% by weight, based on 100 parts by weight of a composition in which the weight ratio (B)/(C) of the short glass fibers (B) and the glass ultrashort fibers (C) is 1/3 to 10/1. polylactone 0.01
A polycarbonate resin composition characterized in that it contains ~5 parts by weight. 2. The composition according to claim 1, wherein the polylactone is represented by the following general formula. (Here, R 1 and R 2 are hydrogen or an alkyl group having 1 to 5 carbon atoms, x is 2 to 10, and n is 100 to 2000
It is. )
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8265385A JPS61241355A (en) | 1985-04-19 | 1985-04-19 | Polycarbonate resin composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8265385A JPS61241355A (en) | 1985-04-19 | 1985-04-19 | Polycarbonate resin composition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61241355A JPS61241355A (en) | 1986-10-27 |
| JPH0346023B2 true JPH0346023B2 (en) | 1991-07-12 |
Family
ID=13780385
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8265385A Granted JPS61241355A (en) | 1985-04-19 | 1985-04-19 | Polycarbonate resin composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61241355A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63170457A (en) * | 1987-01-08 | 1988-07-14 | Teijin Chem Ltd | Camera component |
| JPH0652363B2 (en) * | 1988-02-08 | 1994-07-06 | 帝人化成株式会社 | Camera parts |
| JPH0453867A (en) * | 1990-06-21 | 1992-02-21 | Mitsubishi Gas Chem Co Inc | Smooth-surface fiber-reinforced resin composition |
| JP2842965B2 (en) * | 1992-04-14 | 1999-01-06 | 帝人化成株式会社 | Aromatic polycarbonate resin composition |
| JPH0948912A (en) * | 1995-08-07 | 1997-02-18 | Nippon G Ii Plast Kk | Polycarbonate resin composition |
-
1985
- 1985-04-19 JP JP8265385A patent/JPS61241355A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61241355A (en) | 1986-10-27 |
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