JPS57172951A - Resin molded article - Google Patents

Resin molded article

Info

Publication number
JPS57172951A
JPS57172951A JP5723281A JP5723281A JPS57172951A JP S57172951 A JPS57172951 A JP S57172951A JP 5723281 A JP5723281 A JP 5723281A JP 5723281 A JP5723281 A JP 5723281A JP S57172951 A JPS57172951 A JP S57172951A
Authority
JP
Japan
Prior art keywords
molded article
warpage
resin molded
block copolymer
mold release
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.)
Pending
Application number
JP5723281A
Other languages
Japanese (ja)
Inventor
Motonori Hiratsuka
Hiromitsu Ishii
Chiaki Tanaka
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toray Industries Inc
Original Assignee
Toray Industries Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Toray Industries Inc filed Critical Toray Industries Inc
Priority to JP5723281A priority Critical patent/JPS57172951A/en
Publication of JPS57172951A publication Critical patent/JPS57172951A/en
Pending legal-status Critical Current

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  • Compositions Of Macromolecular Compounds (AREA)

Abstract

PURPOSE: To provide a resin molded article which has good mold release characteristics and does not have molding defects such as sink marks and warpage, by mixing a specified polyether ester block copolymer with fine particles of polybutylene terephthalate.
CONSTITUTION: 0.1W10pts.wt. fine polyethylene terephthalate particles having crystallinity of 40% or above and an avergae particle size of 50μ or below are homogeneously mixed with 100pts.wt. polyether ester block copolymer in which terephthalic acid, 1,4-butanediol and a polyoxyalkylene glycol having a number average MW of 300W6,000 such as poly(tetramethylene oxide) glycol are used as essential components and which contains 5W80wt% polyoxyalkylene glycol. The resulting molded article has excellent moldability such that the article has good mold release charcteristics and does not have molding defects such as sink marks and warpage, and molding cycle can be shortened.
COPYRIGHT: (C)1982,JPO&Japio
JP5723281A 1981-04-17 1981-04-17 Resin molded article Pending JPS57172951A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5723281A JPS57172951A (en) 1981-04-17 1981-04-17 Resin molded article

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5723281A JPS57172951A (en) 1981-04-17 1981-04-17 Resin molded article

Publications (1)

Publication Number Publication Date
JPS57172951A true JPS57172951A (en) 1982-10-25

Family

ID=13049777

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5723281A Pending JPS57172951A (en) 1981-04-17 1981-04-17 Resin molded article

Country Status (1)

Country Link
JP (1) JPS57172951A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01201361A (en) * 1987-12-02 1989-08-14 General Electric Co <Ge> Improved nuclear forming agent-containing thermoplastic copolyester molding composition

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4845547A (en) * 1971-10-05 1973-06-29
JPS54139685A (en) * 1978-04-21 1979-10-30 Toray Industries Polyester elastomer moldings
JPS5641249A (en) * 1980-08-18 1981-04-17 Toray Ind Inc Polyester elastomer molded article

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4845547A (en) * 1971-10-05 1973-06-29
JPS54139685A (en) * 1978-04-21 1979-10-30 Toray Industries Polyester elastomer moldings
JPS5641249A (en) * 1980-08-18 1981-04-17 Toray Ind Inc Polyester elastomer molded article

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01201361A (en) * 1987-12-02 1989-08-14 General Electric Co <Ge> Improved nuclear forming agent-containing thermoplastic copolyester molding composition

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