US4329438A
Expired / Lapsed
US
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Thermosetting unsaturated polyester resin composition and method for preparation thereof
Assignee: Asahi Kasei Corp
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Filing: 1981-02-11
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Granted: 1982-05-11
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Expires: 2001-02-11
Abstract
Abstract A thermosetting unsaturated polyester resin composition comprising (a) an unsaturated polyester, (b) a modified block copolymer comprising a block copolymer of vinyl aromatic compound and conjugated diene compound onto which an unsaturated dicarboxylic acid and/or an unsaturated dicarboxylic acid derivative is grafted, (c) a vinyl monomer, (d) a curing agent and, if necessary, (e) other additives, the amounts of said (a), (b) and (c) constituents being 10 to 90 parts by weight, 2 to 70 parts by weight, and 10 to 80 parts by weight, respectively, the total amount of (a), (b) and (c) being 100 parts by weight, and the proportion of (d) being 0.1 to 10 parts by weight per 100 parts by weight of the total amount of (a), (b) and (c). The above composition is excellent in impact resistance, surface characteristics and rigidity.
Inventors
- 👤 Akio Yamori
- 👤 Akira Saito
- 👤 Hideo Morita
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:48
CPC Classifications
C; C08; C08L; C08L51/00; C08L67/00; C08L67/06
Claims Analysis
Total Claims: 31
Claim 1
Independent Claim
59 words
A thermosetting unsaturated polyester resin composition comprising: (a) an unsaturated polyester, (b) a modified block copolymer comprising a block copolymer of vinyl aromatic compound and conjugated diene compound onto which more than one molecule of an unsaturated dicarboxylic acid and/or unsaturated dicarboxylic acid derivative is grafted, (c) a vinyl monomer, (d) a curing agent, and (e) optionally, other additives.
Claim 2
Dependent Claim
59 words
A thermosetting unsaturated polyester resin composition comprising: (a) an unsaturated polyester, (b) a modified block copolymer comprising a block copolymer of vinyl aromatic compound and conjugated diene compound onto which more than one molecule of an unsaturated dicarboxylic acid and/or unsaturated dicarboxylic acid derivative is grafted, (c) a vinyl monomer, (d) a curing agent, and (e) optionally, other additives.
Claim 3
Dependent Claim
72 words
A composition according to claim 1, which comprises 10 to 90 parts by weight of (a), 2 to 70 parts by weight of (b), 10 to 80 parts by weight of (c), the total sum of the constituents (a), (b) and (c) being 100 parts by weight, and 0.1 to 10 parts by weight of (d) per 100 parts by weight of the total sum of the constituents (a), (b) and (c).
Claim 4
Dependent Claim
15 words
A composition according to claim 1, wherein the dicarboxylic acid derivative is a dicarboxylic anhydride.
Claim 5
Dependent Claim
30 words
A composition according to claim 1, wherein the constituent (b) is a block copolymer of vinyl aromatic compound and conjugated diene compound onto which an unsaturated dicarboxylic anhydride is grafted.
Claim 6
Dependent Claim
41 words
A composition according to claim 1, wherein the constituent (b) is a modified block copolymer in which more than 1 up to 200 unsaturated dicarboxylic acid or unsaturated dicarboxylic acid derivative molecules are grafted onto one molecule of the block copolymer.
Claim 7
Dependent Claim
38 words
A composition according to claim 1, wherein the constituent (b) is a modified block copolymer in which 2 to 20 unsaturated dicarboxylic acid or unsaturated dicarboxylic acid derivative molecules are grafted onto one molecule of the block copolymer.
Claim 8
Dependent Claim
21 words
A composition according to claim 1 or 2, wherein the block copolymer of the constituent (b) is a branched block copolymer.
Claim 9
Dependent Claim
21 words
A composition according to claim 1 or 2, wherein the block copolymer of the constituent (b) is a linear block copolymer.
Claim 10
Dependent Claim
20 words
A composition according to claim 7, wherein the branched block copolymer of the constituent (b) has 3 or more branches.
Claim 11
Dependent Claim
19 words
A composition according to claim 7, wherein the branched block copolymer of the constituent (b) has 4 radial branches.
Claim 12
Dependent Claim
25 words
A composition according to claim 7, wherein the branched block copolymer of the constituent (b) has the blocks coupled with a halogen-containing polyfunctional coupling agent.
Claim 13
Dependent Claim
23 words
A composition according to claim 7, wherein the branched block copolymer of the constituent (b) has the blocks coupled with a silicon compound.
Claim 14
Dependent Claim
24 words
A composition according to claim 12, wherein the branched block copolymer of the constituent (b) has 4 branched blocks coupled with a silicon halide.
Claim 15
Dependent Claim
20 words
A composition according to claim 8, wherein the linear block copolymer of the constituent (b) is of the tapered type.
Claim 16
Dependent Claim
41 words
A composition according to claim 8, wherein the linear block copolymer of the constituent (b) has at least one polymer block chiefly composed of a vinyl aromatic compound and at least one polymer block chiefly composed of a conjugated diene compound.
Claim 17
Dependent Claim
37 words
A composition according to claim 8, wherein the linear block copolymer of the constituent (b) has 2 polymer blocks chiefly composed of a vinyl aromatic compound and one polymer block chiefly composed of a conjugated diene compound.
Claim 18
Dependent Claim
37 words
A composition according to claim 8, wherein the linear block copolymer of the constituent (b) has 2 polymer blocks chiefly composed of a vinyl aromatic compound and 2 polymer blocks chiefly composed of a conjugated diene compound.
Claim 19
Dependent Claim
27 words
A composition according to claim 1 or 2, wherein the block copolymer of the constituent (b) contains 60% by weight or less of a vinyl aromatic compound.
Claim 20
Dependent Claim
27 words
A composition according to claim 1 or 2, wherein the block copolymer of the constituents (b) contains more than 60% by weight of a vinyl aromatic compound.
Claim 21
Dependent Claim
23 words
A composition according to claim 1 or 2, wherein the modified block copolymer of the constituent (b) has bonded thereto succinic anhydride residues.
Claim 22
Dependent Claim
28 words
A composition according to claim 1 or 2, wherein the modified block copolymer of the constituent (b) contains unreacted unsaturated dicarboxylic acid or unreacted unsaturated dicarboxylic acid derivative.
Claim 23
Dependent Claim
48 words
A composition according to claim 1 or 2, wherein the modified block copolymer of the constituent (b) is obtained by chemically grafting an unsaturated dicarboxylic acid or a derivative thereof onto the block copolymer in the molten mixed state under such conditions that radical formation is substantially inhibited.
Claim 24
Dependent Claim
32 words
A composition according to claim 1 or 2, wherein said other additives are at least one member selected from the group consisting of fillers, fibrous reinforcing agents, thickeners and low shrinkage agents.
Claim 25
Dependent Claim
16 words
A composition according to claim 23, wherein said other additives are fillers and fibrous reinforcing agents.
Claim 26
Dependent Claim
17 words
A composition according to claim 23, wherein said other additives are fillers, fibrous reinforcing agents and thickeners.
Claim 27
Dependent Claim
19 words
A composition according to claim 23, wherein said other additives are fillers, fibrous reinforcing agents and low shrinkage agents.
Claim 28
Dependent Claim
20 words
A composition according to claim 23, wherein said other additives are fillers, fibrous reinforcing agents, thickeners and low shrinkage agents.
Claim 29
Independent Claim
98 words
A method for producing a thermosetting unsaturated polyester resin composition, which comprises mixing a first mixture comprising (a) an unsaturated polyester and (c) a vinyl monomer with a second mixture comprising (b) a modified block copolymer comprising a block copolymer of vinyl aromatic compound and conjugated diene compound onto which more than one molecule of an unsaturated dicarboxylic acid and/or an unsaturated dicarboxylic acid derivative is grafted, and (c) a vinyl monomer, either one or both of said first and second mixtures having been admixed, before said mixing, with (d) a curing agent and, (e) optionally, other additives.
Claim 30
Independent Claim
98 words
A method for producing a thermosetting unsaturated polyester resin composition, which comprises mixing a first mixture comprising (a) an unsaturated polyester and (c) a vinyl monomer with a second mixture comprising (b) a modified block copolymer comprising a block copolymer of vinyl aromatic compound and conjugated diene compound onto which more than one molecule of an unsaturated dicarboxylic acid and/or an unsaturated dicarboxylic acid derivative is grafted, and (c) a vinyl monomer, either one or both of said first and second mixtures having been admixed, before said mixing, with (d) a curing agent and, (e) optionally, other additives.
Claim 31
Dependent Claim
23 words
A method for producing a thermosetting unsaturated polyester resin composition according to claim 28, wherein the second mixture has admixed therewith a filler.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-05-10 | 1985-11-09 | 1986-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-05-10 | 1989-11-09 | 1990-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-05-10 | 1993-11-09 | 1994-05-11 | $7700.00 | Window Closed / Lapsed |