GB1226944A - - Google Patents

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Publication number
GB1226944A
GB1226944A GB1226944DA GB1226944A GB 1226944 A GB1226944 A GB 1226944A GB 1226944D A GB1226944D A GB 1226944DA GB 1226944 A GB1226944 A GB 1226944A
Authority
GB
United Kingdom
Prior art keywords
acid
specified
excess base
excess
effected
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
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 filed Critical
Publication of GB1226944A publication Critical patent/GB1226944A/en
Expired legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
    • C08G69/02—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Polyamides (AREA)
  • Artificial Filaments (AREA)

Abstract

1,226,944. Branched polyamides. IMPERIAL CHEMICAL INDUSTRIES Ltd. 23 April, 1968 [1 May, 1967], No. 20020/67. Heading C3R. The polymerization of a lactam, aminocarboxylic acid or diamine-diacid salt which without modification would yield a polyamide having a gel time of at least 1500 minutes is effected in the presence of excess base and a chain branching agent to give a modified polyamide having a melt viscosity of at least 400 poise at 25‹ C. above the optical M.P. of the polymer. Specified polyamides are nylons 6, 68, 610, 11 and 66/6 in ratios between 3:1 and 1: 3. Specified chain branching agents are trimesic acid and bis-hexamethylene triamine, which may also provide the excess base. The amount used should be sufficient to give the specified melt viscosity and will usually be 20 to 150 moles/g. of monomer. The amount of excess base should provide an excess of at least 80, preferably 150 to 200 basic over acidic groups and where a basic branching agent is used adjustment may be effected with a dibasic acid. The polymers may be spun to acid-dyeable fibres.
GB1226944D 1967-05-01 1967-05-01 Expired GB1226944A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2002067 1967-05-01

Publications (1)

Publication Number Publication Date
GB1226944A true GB1226944A (en) 1971-03-31

Family

ID=10139028

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1226944D Expired GB1226944A (en) 1967-05-01 1967-05-01

Country Status (4)

Country Link
BE (1) BE714507A (en)
FR (1) FR1581518A (en)
GB (1) GB1226944A (en)
NL (1) NL6806139A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2365646A1 (en) * 1976-09-24 1978-04-21 Bayer Ag POLYCAPROLACTAM YARNS AND FIBERS THAT CAN BE DYED IN DARK COLORS
WO2007059254A1 (en) * 2005-11-15 2007-05-24 Invista Technologies S.A R.L. Improved polyamide yarn spinning process and modified yarn
WO2013004548A1 (en) * 2011-07-01 2013-01-10 Dsm Ip Assets B.V. Branched polyamide
WO2013004531A1 (en) * 2011-07-01 2013-01-10 Dsm Ip Assets B.V. Branched polyamide with different blocks
EP3290459A4 (en) * 2015-04-29 2019-01-02 Lotte Advanced Materials Co., Ltd. Polyamide resin, polyamide resin composition containing same, preparation method therefor, and molded product including same

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2365646A1 (en) * 1976-09-24 1978-04-21 Bayer Ag POLYCAPROLACTAM YARNS AND FIBERS THAT CAN BE DYED IN DARK COLORS
WO2007059254A1 (en) * 2005-11-15 2007-05-24 Invista Technologies S.A R.L. Improved polyamide yarn spinning process and modified yarn
WO2013004548A1 (en) * 2011-07-01 2013-01-10 Dsm Ip Assets B.V. Branched polyamide
WO2013004531A1 (en) * 2011-07-01 2013-01-10 Dsm Ip Assets B.V. Branched polyamide with different blocks
CN103635510A (en) * 2011-07-01 2014-03-12 帝斯曼知识产权资产管理有限公司 Branched polyamide with different blocks
JP2014518301A (en) * 2011-07-01 2014-07-28 ディーエスエム アイピー アセッツ ビー．ブイ． Branched polyamide
CN103635510B (en) * 2011-07-01 2015-10-21 帝斯曼知识产权资产管理有限公司 There is the branched polyamides of different block
US9321888B2 (en) 2011-07-01 2016-04-26 Dsm Ip Assets B.V. Branched polyamide
US9376535B2 (en) 2011-07-01 2016-06-28 Dsm Ip Assets B.V. Branched polyamide with different blocks
EP3290459A4 (en) * 2015-04-29 2019-01-02 Lotte Advanced Materials Co., Ltd. Polyamide resin, polyamide resin composition containing same, preparation method therefor, and molded product including same
US10385166B2 (en) 2015-04-29 2019-08-20 Lotte Advanced Materials Co., Ltd. Polyamide resin, polyamide resin composition containing same, preparation method therefor, and molded product including same

Also Published As

Publication number Publication date
FR1581518A (en) 1969-09-19
BE714507A (en) 1968-10-30
NL6806139A (en) 1968-11-04

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Legal Events

Date Code Title Description
CSNS Application of which complete specification have been accepted and published, but patent is not sealed