US5670576A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyamide resin composition
Assignee: SABIC Global Technologies BV
•
Filing: 1996-03-11
•
Granted: 1997-09-23
•
Expires: 2016-03-11
Abstract
Abstract The present invention provides a polyamide resin composition which has low water absorption and simultaneously has satisfactory combustion properties. Illustrative compositions contain 20-80 parts by weight of polyamide resin and 80-20 parts by weight of polyphenylene ether resin or a mixture of this resin and polystyrene resin, as well as 0.01-10 parts by weight of a compatibilizer, 1-50 parts by weight of an uncured phenol novolak resin, and 0-80 parts by weight of a rubber component wherein the weights of the compatibilizer, uncured phenol novolak resin and rubber component is based on a total of 100 parts by weight of polyamide and polyphenylene ether resins.
Inventors
- 👤 Takayuki Takatani
- 👤 Hiromi Ishida
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:35
CPC Classifications
C; C08; C08L; C08L77/00; C08L71/00; C08L71/08; C08L71/10; C08L71/12; C08L71/123; C08L61/00; C08L61/04; C08L61/06
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
91 words
A polyamide resin composition comprising: (A) 20-80 parts by weight of polyamide resin; (B) 80-20 parts by weight of polyphenylene ether resin or a mixture of said polyphenylene ether resin and polystyrene resin; and further comprising, with respect to a total of 100 parts by weight of (A) and (B), (C) 0.01-10 parts by weight of a compatibilizer; (D) 1-50 parts by weight of uncured phenol novolak resin wherein the uncured phenol novolak resin is at least partly modified by boric acid; and (E) 0-80 parts by weight of rubber components.
Claim 2
Dependent Claim
91 words
A polyamide resin composition comprising: (A) 20-80 parts by weight of polyamide resin; (B) 80-20 parts by weight of polyphenylene ether resin or a mixture of said polyphenylene ether resin and polystyrene resin; and further comprising, with respect to a total of 100 parts by weight of (A) and (B), (C) 0.01-10 parts by weight of a compatibilizer; (D) 1-50 parts by weight of uncured phenol novolak resin wherein the uncured phenol novolak resin is at least partly modified by boric acid; and (E) 0-80 parts by weight of rubber components.
Claim 3
Dependent Claim
32 words
The resin composition of claim 1, wherein the compatibilizer is selected from among saturated aliphatic polycarboxylic acids, derivatives of saturated aliphatic polycarboxylic acids, unsaturated dicarboxylic acids, and derivatives of unsaturated dicarboxylic acids.
Claim 4
Dependent Claim
35 words
The resin composition of claim 1 further comprising an antioxidant in the amount of 5 parts by weight or less with respect to a total of 100 parts by weight of components (A) and (B).
Claim 5
Dependent Claim
37 words
The resin composition of claim 1 further comprising a metallic salt stabilizer in the amount of 5 parts by weight or less with respect to a total of 100 parts by weight of components (A) and (B).
Claim 6
Dependent Claim
30 words
The resin composition of claim 1 wherein the average combustion time is less than half the average combustion time of the same composition not containing the uncured phenol novolak resin.
Claim 7
Dependent Claim
17 words
The resin composition of claim 1 wherein the average combustion time is less than about 20.4 seconds.
Claim 8
Dependent Claim
30 words
The resin composition of claim 1 wherein the water absorption rate is at least about 16% less as compared to the same composition not containing the uncured phenol novolak resin.
Claim 9
Dependent Claim
95 words
A polyamide resin composition consisting essentially of: (A) 20-80 parts by weight of polyamide resin; (B) 80-20 parts by weight of polyphenylene ether resin or a mixture of said polyphenylene ether resin and polystyrene resin; and further consisting essentially of, with respect to a total of 100 parts by weight of (A) and (B), (C) 0.01-10 parts by weight of a compatibilizer; (D) 1-50 parts by weight of uncured phenol novolak resin wherein the uncured phenol novolak resin is at least partly modified by boric acid; and (E) 0-80 parts by weight of rubber components.
Claim 10
Dependent Claim
95 words
A polyamide resin composition consisting essentially of: (A) 20-80 parts by weight of polyamide resin; (B) 80-20 parts by weight of polyphenylene ether resin or a mixture of said polyphenylene ether resin and polystyrene resin; and further consisting essentially of, with respect to a total of 100 parts by weight of (A) and (B), (C) 0.01-10 parts by weight of a compatibilizer; (D) 1-50 parts by weight of uncured phenol novolak resin wherein the uncured phenol novolak resin is at least partly modified by boric acid; and (E) 0-80 parts by weight of rubber components.
Claim 11
Dependent Claim
32 words
The resin composition of claim 8, wherein the compatibilizer is selected from among saturated aliphatic polycarboxylic acids, derivatives of saturated aliphatic polycarboxylic acids, unsaturated dicarboxylic acids, and derivatives of unsaturated dicarboxylic acids.
Claim 12
Dependent Claim
24 words
The resin composition of claim 8, wherein the uncured phenol novolak resin consists of uncured phenol novolak resin that is modified by boric acid.
Claim 13
Dependent Claim
37 words
The resin composition of claim 8, further consisting essentially of an antioxidant in the amount of 5 parts by weight or less with respect to a total of 100 parts by weight of components (A) and (B).
Claim 14
Dependent Claim
39 words
The resin composition of claim 8, further consisting essentially of a metallic salt stabilizer in the amount of 5 parts by weight or less with respect to a total of 100 parts by weight of components (A) and (B).
Claim 15
Dependent Claim
30 words
The resin composition of claim 8, wherein the average combustion time is less than half the average combustion time of the same composition not containing the uncured phenol novolak resin.
Claim 16
Dependent Claim
17 words
The resin composition of claim 8, wherein the average combustion time is less than about 20.4 seconds.
Claim 17
Dependent Claim
30 words
The resin composition of claim 8, wherein the water absorption rate is at least about 16% less as compared to the same composition not containing the uncured phenol novolak resin.
References Cited (Backward Citations)
US4182697A
Cited
US4338421A
Cited
US4315086A
Cited
EP0147874A1
Cited
US4659760A
Cited
US4822837A
Cited
US4600741A
Cited
US4642358A
Cited
US4873286A
Cited
US4728693A
Cited
US4888397A
Cited
US5331060A
Cited
US4824915A
Cited
US5069818A
Cited
EP0221341A1
Cited
EP0222129A1
Cited
US4743651A
Cited
US4654405A
Cited
US4923924A
Cited
US4798865A
Cited
US4772664A
Cited
US4970272A
Cited
EP0234063A1
Cited
EP0237187A1
Cited
US5262478A
Cited
US5248728A
Cited
US4874810A
Cited
US5120801A
Cited
US5000897A
Cited
US4839425A
Cited
EP0253123A1
Cited
US4755566A
Cited
US4889889A
Cited
US4760115A
Cited
US4877847A
Cited
US5288786A
Cited
US5162433A
Cited
US4968749A
Cited
US5159018A
Cited
US5112907A
Cited
US5237002A
Cited
US4885334A
Cited
US4792586A
Cited
US4745157A
Cited
US5019626A
Cited
US5115010A
Cited
US5162440A
Cited
EP0292153A2
Cited
US4929675A
Cited
US5109052A
Cited
US5134196A
Cited
US4960825A
Cited
US5053458A
Cited
US4957965A
Cited
US4963620A
Cited
US4826933A
Cited
US5017652A
Cited
US5162447A
Cited
US4822836A
Cited
US4866114A
Cited
US5055494A
Cited
US4857575A
Cited
EP0314000A2
Cited
US4859739A
Cited
US4990564A
Cited
US4981920A
Cited
US5073620A
Cited
US5175211A
Cited
US5039746A
Cited
US5212256A
Cited
US5096979A
Cited
US5001181A
Cited
US5115044A
Cited
US5084523A
Cited
US5073596A
Cited
US5086105A
Cited
US5041504A
Cited
US5026787A
Cited
US5147942A
Cited
US5153266A
Cited
US5070151A
Cited
US5017663A
Cited
US5166237A
Cited
US5145904A
Cited
US5244973A
Cited
US5091473A
Cited
US5124391A
Cited
US5182336A
Cited
US5120800A
Cited
US5159008A
Cited
US5159075A
Cited
US5310821A
Cited
US5122575A
Cited
US5210125A
Cited
US5266673A
Cited
US5296533A
Cited
US5225270A
Cited
US5474853A
Cited
US5378750A
Cited
US5336732A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2000-09-22 | 2001-03-24 | 2001-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-09-22 | 2005-03-24 | 2005-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-09-22 | 2009-03-24 | 2009-09-23 | $7700.00 | Window Closed / Lapsed |