US4506053A
Expired / Lapsed
US
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Acetal resin composition
Assignee: Mitsubishi Gas Chemical Co Inc
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Filing: 1983-12-07
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Granted: 1985-03-19
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Expires: 2003-12-07
Abstract
Abstract An acetal resin composition comprising (A) an acetal resin, (B) at least one member selected from the group consisting of (1) a polyfunctional cyanic acid ester or its prepolymer, (2) a mixture of a polyfunctional cyanic acid ester or its prepolymer with a polyfunctional maleimide or its prepolymer and (3) a pre-copolymer of a polyfunctional cyanic acid ester and a polyfunctional maleimide, (C) an amine-substituted triazine and/or a cyanoguanidine compound, and (D) an inorganic filler other than glass, and/or an organic filler.
Inventors
- 👤 Masanori Sakurai
- 👤 Junichi Miyawaki
- 👤 Toshikazu Umemura
- 👤 Toshikatsu Kawata
- 👤 Shinzi Kiboshi
- 👤 Akiyoshi Shibata
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 02:14
CPC Classifications
C; C08; C08K; C08K3/00; C08K3/01; C08K3/013
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
91 words
An acetal resin composition comprising (A) an acetal resin which is a homopolymer or copolymer containing oxymethylene units, (B) at least one member selected from the group consisting of (1) a polyfunctional cyanic acid ester or its prepolymer, (2) a mixture of a polyfunctional cyanic acid ester or its prepolymer with a polyfunctional maleimide or its prepolymer and (3) a pre-copolymer of a polyfunctional cyanic acid ester and a polyfunctional maleimide, (C) an amine-substituted triazine and/or a cyanoguanidine compound, and (D) an inorganic filler other than glass, and/or an organic filler.
Claim 2
Dependent Claim
91 words
An acetal resin composition comprising (A) an acetal resin which is a homopolymer or copolymer containing oxymethylene units, (B) at least one member selected from the group consisting of (1) a polyfunctional cyanic acid ester or its prepolymer, (2) a mixture of a polyfunctional cyanic acid ester or its prepolymer with a polyfunctional maleimide or its prepolymer and (3) a pre-copolymer of a polyfunctional cyanic acid ester and a polyfunctional maleimide, (C) an amine-substituted triazine and/or a cyanoguanidine compound, and (D) an inorganic filler other than glass, and/or an organic filler.
Claim 3
Dependent Claim
16 words
The composition of claim 1 wherein the acetal resin (A) is composed mainly of oxymethylene units.
Claim 4
Dependent Claim
16 words
The composition of claim 1 wherein the acetal resin (A) is composed substantially of oxymethylene units.
Claim 5
Dependent Claim
25 words
The composition of claim 1 wherein the acetal resin (A) is composed substantially of oxymethylene units and oxyalkylene units having at least 2 carbon atoms.
Claim 6
Dependent Claim
67 words
The composition of claim 1 wherein the polyfunctional cyanic acid ester or its prepolymer is a compound represented by the following formula R.sub.1 --O--C.tbd.N).sub.m wherein R 1 represents an aromatic organic group having a valence of m, the cyanate group --O--C.tbd.N is bonded directly to the aromatic ring of the organic group R 1 , and m is an integer of 2 or more, or its prepolymer.
Claim 7
Dependent Claim
66 words
The composition of claim 1 wherein the polyfunctional maleimide or its prepolymer is a compound represented by the following formula ##STR5## wherein R 2 represents an aromatic or aliphatic organic group having a valence of n, each of X 1 X 2 represents a hydrogen atom, a halogen atom or a lower alkyl group, and n represents an integer of 2 or more, or its prepolymer.
Claim 8
Dependent Claim
39 words
The composition of claim 1 wherein the pre-copolymer of the polyfunctional cyanic acid ester and the polyfunctional maleimide is a prepolymer of the compound of the formula in claim 5 and the compound of the formula in claim 6.
Claim 9
Dependent Claim
83 words
The composition of claim 1 wherein the aminesubstituted triazine is a compound represented by the following formula ##STR6## wherein R 1 , R 2 and R 3 are identical or different and each represents a hydrogen atom, a halogen atom, a hydroxyl group, an alkyl group, an alkoxy group, an aryl group, an arylalkyloxy group, or a substituted or unsubstituted amino group, provided that at least one of R 1 , R 2 and R 3 is a substituted or unsubstituted amino groups.
Claim 10
Dependent Claim
44 words
The composition of claim 1 wherein the cyanoguanidine compound is a compound represented by the following formula ##STR7## wherein R 1 and R 2 are identical or different, and each represents a hydrogen atom, an alkyl group, a hydroxyalkyl group or an aryl group.
Claim 11
Dependent Claim
39 words
The composition of claim 1 wherein the inorganic filler is a metal, a metal oxide, a metal hydroxide, metal sulfide, a metal carbonate, a metal sulfate, a metal silicate (excluding glass), a metal borate, potassium titanate, carbon or graphite.
Claim 12
Dependent Claim
23 words
The composition of claim 1 wherein the organic filler is an aromatic polyester fiber, an aromatic polyamide fiber or an aromatic polyimide fiber.
Claim 13
Dependent Claim
44 words
The composition of claim 1 comprising 100 parts by weight of the acetal resin (A), 0.1 to 20 parts by weight of the component (B), 0.01 to 20 parts by weight of the component (C) and 0.1 to 120 parts of the component (D).
Claim 14
Dependent Claim
16 words
The composition of claim 2 wherein the acetal resin (A) is composed substantially of oxymethylene units.
Claim 15
Dependent Claim
25 words
The composition of claim 2 wherein the acetal resin (A) is composed substantially of oxymethylene units and oxyalkylene units having at least 2 carbon atoms.
Claim 16
Dependent Claim
15 words
The composition of claim 1 wherein the inorganic filler is a metal silicate, excluding glass.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-03-18 | 1988-09-17 | 1989-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-03-18 | 1992-09-17 | 1993-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-03-18 | 1996-09-17 | 1997-03-19 | $7700.00 | Window Closed / Lapsed |