Patent EP0624923A1 successfully refreshed from Google Patents.
EP0624923A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Connector
Assignee: Sumitomo Wiring Systems Ltd
•
Filing: 1993-10-05
•
Granted: —
•
Expires: 2013-10-05
Abstract
Abstract A connector having a housing made from a polyamide resin composition comprising (A) 65-85 wt.% of a specified aromatic polyamide, (B) 5-20 wt.% of a grafted α-olefin random copolymer and/or a grafted aromatic vinyl hydrocarbon/conjugated diene copolymer, or a hydrogenated derivative thereof, (C) 0.1-1.0 wt.% of polyethylene wax or a metal salt of a C₂₆-C₃₂ aliphatic carboxylic acid based on 100 wt.% of the sum total of the components (A) and (B), and if necessary (D) an antioxidant. The invention aims at providing a connector which does not undergo thermal deterioration of the properties such as toughness and is especially excellent in formability and lightweight.
Inventors
- 👤 Fumitoshi Mitsui Petrochemical Ind. Ltd. Ikejiri
- 👤 Katunari Mitsui Petrochemical Ind Ltd. Nishimura
- 👤 Takao Sumitomo Wiring Systems Ltd. Nozaki
- 👤 Akira Sumitomo Wiring Systems Ltd. Nabeshima
- 👤 Masamitsu Sumitomo Wiring Systems Ltd. Chishima
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-05 05:42
CPC Classifications
H; H01; H01R; H01R13/00; H01R13/46; H01R13/50; C; C08; C08L; C08L77/00; C08L77/10; H01B; H01B3/00; H01B3/18; H01B3/30; H01B3/303; H01B3/305; H01B3/44; H01R13/62; H01R13/627; H01R13/6271; H01R13/6272
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
212 words
A connector having a housing which is formed from a polyamide resin composition comprising (A) 65-90 % by weight of an aromatic polyamide having an intrinsic viscosity (η), as measured in a concentrated sulfuric acid at 30 °C, of 0.5-3.0 dl/g and a melting point of exceeding 300 °C, said aromatic polyamide (A) being composed of recurring units comprising 50-100 % by mol of terephthalic acid constituent units, 0-50 % by mol of aromatic dicarboxylic acid constituent units other than the terephthalic acid constituent units and/or 0-50 % by mol of aliphatic dicarboxylic acid constituent units, each of which has 4 to 20 carbon atoms, and recurring units comprising aliphatic alkylenediamine constituent units and/or alicyclic alkylenediamine constituent units; and (B) 10-35 % by weight of a graft-modified α-olefin random copolymer and/or a graft-modified vinyl aromatic hydrocarbon/conjugated diene copolymer or a hydrogenation product thereof, with the proviso that the sum total of aromatic polyamide (A) and graft-modified copolymer (B) is 100 % by weight; and (C) 0.1-1.0 % by weight, based on 100 % by weight of the sum total of aromatic polyamide (A) and graft-modified copolymer (B), of at least one compound selected from the group consisting polyethylene waxes and metallic salts of aliphatic carboxylic acids having 26 to 32 carbon atoms.
Claim 2
Dependent Claim
225 words
A connector having a housing which is formed from a polyamide resin composition comprising (A) 65-90 % by weight of an aromatic polyamide having an intrinsic viscosity (η), as measured in a concentrated sulfuric acid at 30 °C, of 0.5-3.0 dl/g and a melting point of exceeding 300 °C, said aromatic polyamide (A) being composed of recurring units comprising 50-100 % by mol of terephthalic acid constituent units, 0-50 % by mol of aromatic dicarboxylic acid constituent units other than the terephthalic acid constituent units and/or 0-50 % by mol of aliphatic dicarboxylic acid constituent units, each of which has 4 to 20 carbon atoms, and recurring units comprising aliphatic alkylenediamine constituent units and/or alicyclic alkylenediamine constituent units; and (B) 10-35 % by weight of a graft-modified α-olefin random copolymer and/or a graft-modified vinyl aromatic hydrocarbon/conjugated diene copolymer or a hydrogenation product thereof, with the proviso that the sum total of aromatic polyamide (A) and graft-modified copolymer (B) is 100 % by weight; and (C) 0.1-1.0 % by weight, based on 100 % by weight of the sum total of aromatic polyamide (A) and graft-modified copolymer (B), of at least one compound selected from the group consisting polyethylene waxes and metallic salts of aliphatic carboxylic acids having 26 to 32 carbon atoms; and (D) an antioxidant including a hindered phenol antioxidant and a sulfur antioxidant.
Claim 3
Dependent Claim
57 words
The connector as claimed in claim 1 or 2 wherein the dicarboxylic acid constituent units of said aromatic polyamide (A) is composed of 50-80 % by mol of terephthalic acid constituent units, 0-40 % by mol of aromatic dicarboxylic acid constituent units other than terephthalic acid, and 20-50 % by mol of aliphatic dicarboxylic acid constituent units.
Claim 4
Dependent Claim
42 words
The connector as claimed in claim 1 or 2 wherein the graft-modified α-olefin random copolymer and/or graft-modified vinyl aromatic hydrocarbon/conjugated diene copolymer or hydrogenation product thereof (B) is a graft-modified ethylene/propylene copolymer and/or a hydrogenation product of a graft-modified stylene/butadiene/styrene block copolymer.
Claim 5
Dependent Claim
26 words
The connector as claimed in claim 1 or 2 wherein the metallic salt of aliphatic carboxylic acid having 26 to 32 carbon atoms is sodium montanate.
Claim 6
Dependent Claim
36 words
The connector as claimed in claim 2 wherein the antioxidant (D) comprises a hindered phenole antioxidant having a molecular weight of at least 500 and a sulfur antioxidant having a molecular weight of at least 600.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.