Patent US5321097A successfully refreshed from Google Patents.
US5321097A
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Heat-resistant resin composition
Assignee: Mitsubishi Gas Chemical Co Inc
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Filing: 1993-04-30
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Granted: 1994-06-14
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Expires: 2013-04-30
Abstract
Abstract A heat-resistant resin composition comprising a melt-kneaded product of: (A) at least one member selected from the group consisting of a polyamideimide resin precursor composed mainly of a recurring unit of the formula (1)-a, ##STR1## wherein R is a divalent aromatic group or aliphatic group, R 1 is a hydrogen atom, an alkyl group or a phenyl group, and Ar is a trivalent aromatic group composed of at least one six-membered ring, and a polyamideimide resin composed mainly of a recurring unit of the formula (1)-b, ##STR2## wherein R, R 1 and Ar are as defined in the above formula (1)-a, (B) a polyphenylene sulfide resin, and (C) an organic isocyanate compound having at least two isocyanate groups in the molecule, the amount of said organic isocyanate compound being 0.5 to 5 parts by weight based on 100 parts by weight of the total amount of the compounds (A) and (B).
Inventors
- 👤 Takao Kawaki
- 👤 Akikazu Amagai
- 👤 Masahiko Ishikawa
- 👤 Toshiaki Yamada
- 👤 Yasuhiro Hirai
- 👤 Hajime Ban
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 03:00
CPC Classifications
C; C08; C08L; C08L79/00; C08L79/04; C08L79/08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/4009; C08G18/4081; C08G18/64; C08G18/6415; C08G18/6438; C08G18/6453; C08L81/00; C08L81/02
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
182 words
A heat-resistant resin composition consisting essentially of a melt-kneaded product of: (A) at least one member selected from the group consisting of a polyamideimide resin precursor composed mainly of a recurring unit of the formula (1)-a, ##STR29## wherein R is a divalent aromatic group or aliphatic group, R 1 is a hydrogen atom, an alkyl group or a phenyl group, and Ar is a trivalent aromatic group composed of at least one six-membered ring, and a polyamideimide resin composed mainly of a recurring unit of the formula (1)-b, ##STR30## wherein R, R 1 and Ar are as defined in the above formula (1)-a, (B) a polyphenylene sulfide resin, and (C) an organic isocyanate compound having at least two isocyanate groups in the molecule, wherein, based on 100 parts by weight of the total amount of the compounds (A) and (B), the amount of said organic isocyanate compound (C) is 0.5 to 5 parts by weight, the amount of the component (A) is 20 to 70 parts by weight and the amount of the component (B) is 30 to 80 parts by weight.
Claim 2
Dependent Claim
182 words
A heat-resistant resin composition consisting essentially of a melt-kneaded product of: (A) at least one member selected from the group consisting of a polyamideimide resin precursor composed mainly of a recurring unit of the formula (1)-a, ##STR29## wherein R is a divalent aromatic group or aliphatic group, R 1 is a hydrogen atom, an alkyl group or a phenyl group, and Ar is a trivalent aromatic group composed of at least one six-membered ring, and a polyamideimide resin composed mainly of a recurring unit of the formula (1)-b, ##STR30## wherein R, R 1 and Ar are as defined in the above formula (1)-a, (B) a polyphenylene sulfide resin, and (C) an organic isocyanate compound having at least two isocyanate groups in the molecule, wherein, based on 100 parts by weight of the total amount of the compounds (A) and (B), the amount of said organic isocyanate compound (C) is 0.5 to 5 parts by weight, the amount of the component (A) is 20 to 70 parts by weight and the amount of the component (B) is 30 to 80 parts by weight.
Claim 3
Dependent Claim
25 words
The composition of claim 1, wherein the polyamideimide resin precursor contains not less than 50 mol % of the recurring unit of the formula (1)-a.
Claim 4
Dependent Claim
24 words
The composition of claim 1, wherein the polyamideimide resin contains not less than 50 mol % of the recurring unit of the formula (1)-b.
Claim 5
Dependent Claim
25 words
The composition of claim 1, wherein the polyphenylene sulfide resin contains at least 70 mol % of a recurring unit of the following formula, ##STR31##
Claim 6
Dependent Claim
62 words
The composition of claim 1, wherein the organic isocyanate compound is selected from the group consisting of aromatic polyisocyanate, aliphatic polyisocyanate, an adduct of one of these polyisocyanates with a polyhydric alcohol, an adduct of one of these polyisocyanates with water, an adduct of one of these polyisocyanates with an amine, and an isocyanurate product obtained by modifying one of these polyisocyanates.
Claim 7
Dependent Claim
42 words
The composition of claim 1, wherein, based on the total amount of the components (A) and (B), the amount of the component (A) is 20 to 65% by weight and the amount of the component (B) is 35 to 80% by weight.
Claim 8
Dependent Claim
37 words
The composition of claim 1, wherein the component (C) is contained in an amount of 1 to 3 parts by weight based on 100 parts by weight of the total amount of the components (A) and (B).
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1997-06-13 | 1997-12-13 | 1998-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-06-13 | 2001-12-13 | 2002-06-14 | $3760.00 | Window Closed / Lapsed |
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