GB1202650A - Process for spinning polymer blends - Google Patents

Process for spinning polymer blends

Info

Publication number
GB1202650A
GB1202650A GB50041/68A GB5004168A GB1202650A GB 1202650 A GB1202650 A GB 1202650A GB 50041/68 A GB50041/68 A GB 50041/68A GB 5004168 A GB5004168 A GB 5004168A GB 1202650 A GB1202650 A GB 1202650A
Authority
GB
United Kingdom
Prior art keywords
polyester
nylon
filament
melt
spinneret
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
Application number
GB50041/68A
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.)
Allied Corp
Original Assignee
Allied Chemical Corp
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 Allied Chemical Corp filed Critical Allied Chemical Corp
Publication of GB1202650A publication Critical patent/GB1202650A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
    • C08L67/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
    • C08L77/02—Polyamides derived from omega-amino carboxylic acids or from lactams thereof
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/88—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds
    • D01F6/90—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds of polyamides
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/88—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds
    • D01F6/92—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds of polyesters
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S57/00—Textiles: spinning, twisting, and twining
    • Y10S57/902—Reinforcing or tire cords
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y10T428/2973—Particular cross section

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Artificial Filaments (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

1,202,650. Mixed polyamide/polyester filaments. ALLIED CHEMICAL CORP. 22 Oct., 1968 [23 Oct., 1967], No. 50041/68. Heading B5B. A dispersion of polyester in nylon, which polyester contains from 1-2 rings in the repeating unit of the main polymer chain and the polyester and nylon each being capable of being formed into a filament which can be cold drawn, whereby at least the nylon displays, by X-ray, orientation along the filament axis, is melt spun into continuous filaments by a process comprising: (a) subjecting a molten polyester/nylon mixture to mixing shear which brings the average diameter of the polyester particles dispersed in the nylon to a value D, in microns, given by where P is the parts by weight of the minor ingredient of the blend per 100 parts thereof, and C is the number of rings in the polyester chain unit; (b) flowing this dispersion through each spinneret capillary at apparent shear having a velocity gradient of at least 3000 sec.<SP>-1</SP>, and (c) maintaining in the melt from the exit out of the mixing zone up to the spinneret a temperature of 275 Œ 10‹ C. Preferably the spinneret capillary converges towards its exit with an apex angle not exceeding 60 degrees, the conditions being such that the melt bulge does not exceed 1À4 mm. when the maximum spinneret capillary cross-section is up to 0À35 mm., and the die swell factor is not above 4 when said dimension exceeds 0À35 mm. The polymer's moisture contents should preferably not exceed 0À02%. The product, when fully drawn, has on average, at least 15,000 fibrils of polyester per 1000 sq. microns of filament cross-section, said fibrils having a length: diameter ratio of at least 1500: 1. Specified polymers are nylon 6 and nylon 66, and polyethylene-terephthalate, -2,6- naphthalene dicarboxylate, -isophthalate, -2,7- naphthalene dicarboxylate, and polyhexamethylene - 4,4<SP>1</SP> - diphenylsulphone dicarboxylate. The drawn yarn may be heat-relaxed. In spinning, the quench stack of Specification 1,117,947 may be used.
GB50041/68A 1967-10-23 1968-10-22 Process for spinning polymer blends Expired GB1202650A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US67706467A 1967-10-23 1967-10-23

Publications (1)

Publication Number Publication Date
GB1202650A true GB1202650A (en) 1970-08-19

Family

ID=24717167

Family Applications (1)

Application Number Title Priority Date Filing Date
GB50041/68A Expired GB1202650A (en) 1967-10-23 1968-10-22 Process for spinning polymer blends

Country Status (7)

Country Link
US (1) US3470686A (en)
BE (1) BE722713A (en)
CH (1) CH488823A (en)
DE (1) DE1804444A1 (en)
FR (1) FR1589801A (en)
GB (1) GB1202650A (en)
NL (1) NL6815092A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3549741A (en) * 1967-10-30 1970-12-22 Mildred H Caison Process for preparing improved carpet yarn
US3527843A (en) * 1968-04-11 1970-09-08 Allied Chem Polylactam with polyester with 0.005 to 0.1 mol of 2,2-bis(hydroxymethyl) propionic acid per mol of lactam
US3581522A (en) * 1968-05-01 1971-06-01 Allied Chem Polyblend gems and the like and methods for producing them
US3654679A (en) * 1968-07-30 1972-04-11 Allied Chem Microvoiding with alkali metal hydroxide a heat fused fabric of polyamide with fiber occluded axially aligned polyester microfibers
US3846377A (en) * 1971-11-12 1974-11-05 Allied Chem Method of producing polyethylene terephthalate fibers
US6780941B2 (en) 2000-12-22 2004-08-24 Prisma Fibers, Inc. Process for preparing polymeric fibers based on blends of at least two polymers

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3369057A (en) * 1964-05-18 1968-02-13 Allied Chem Polyamide-polyester dispersions wherein the polyamide is less than 40% amine terminated
US3409597A (en) * 1965-05-17 1968-11-05 Reilly Tar & Chem Corp Polymethylene piperidyl poly(ester-amides)

Also Published As

Publication number Publication date
FR1589801A (en) 1970-04-06
US3470686A (en) 1969-10-07
BE722713A (en) 1969-04-22
NL6815092A (en) 1969-04-25
CH488823A (en) 1970-04-15
DE1804444A1 (en) 1969-08-21

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees