US4101604A
Expired / Lapsed
US
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Unsaturated polyester molding compositions
Assignee: Goodrich Corp
•
Filing: 1977-07-18
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Granted: 1978-07-18
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Expires: 1997-07-18
Abstract
Abstract Unsaturated molding compositions containing an unsaturated polyester resin, a polymerizable monomer, an epihalohydrin polymer, and optionally, reinforcing fibers, catalyst, thermoplastic polymers, thickening agent and fillers. The epihalohydrin polymer improves the toughness of the molding composition.
Inventors
- 👤 Eugene Hugh Rowe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:13
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/02; C08G63/12; C08G63/52; C08G63/54; C08F; C08F299/00; C08F299/02; C08F299/04; C08K; C08K7/00; C08K7/16; C08K7/18; C08K7/20; C08L; C08L63/00; C08L67/00; C08L67/06
Claims Analysis
Total Claims: 36
Claim 1
Independent Claim
46 words
An unsaturated polyester molding composition comprising: (a) an unsaturated polyester resin, (b) a polymerizable monomer, (c) from about 1 to about 30 parts by weight of an epihalohydrin polymer per 100 parts by weight of the combined weight of said unsaturated polyester resin and polymerizable monomer.
Claim 2
Dependent Claim
46 words
An unsaturated polyester molding composition comprising: (a) an unsaturated polyester resin, (b) a polymerizable monomer, (c) from about 1 to about 30 parts by weight of an epihalohydrin polymer per 100 parts by weight of the combined weight of said unsaturated polyester resin and polymerizable monomer.
Claim 3
Dependent Claim
22 words
A composition of claim 1 wherein the epihalohydrin polymer has a number average molecular weight of from about 800 to about 50,000.
Claim 4
Dependent Claim
35 words
A composition of claim 2 containing a catalytic amount of a catalyst selected from the group consisting of benzoyl peroxide, tertiary butyl perbenzoate, cyclohexanone peroxide, tertiary butyl peroxide, tertiary butyl peroctoate, azoisobutyrodinitrile, and cumene hydroperoxide.
Claim 5
Dependent Claim
24 words
A composition of claim 3 containing fiber reinforcement wherein said fibers are selected from the group consisting of glass, nylon, polyester, and aromatic polyamide.
Claim 6
Dependent Claim
27 words
A composition of claim 4 wherein the level of said fibers is from about 5 percent to about 70 percent by weight of the total composition weight.
Claim 7
Dependent Claim
11 words
A composition of claim 4 containing a thermoplastic low profile additive.
Claim 8
Dependent Claim
18 words
A composition of claim 6 containing as a thickening agent an oxide or hydroxide of magnesium or calcium.
Claim 9
Dependent Claim
25 words
A composition of claim 7 wherein the low profile additive is a thermoplastic homopolymer of a vinylidene monomer containing from 2 to 12 carbon atoms.
Claim 10
Dependent Claim
19 words
A composition of claim 7 wherein said composition has a viscosity of from about 30,000,000 to about 100,000,000 cps.
Claim 11
Dependent Claim
38 words
A composition of claim 8 wherein the level of epihalohydrin polymer is from about 1 to about 15 parts by weight per 100 parts by weight of the combined weight of said unsaturated polyester resin and polymerizable monomer.
Claim 12
Dependent Claim
33 words
A composition of claim 10 containing glass bubbles wherein said glass bubbles have a density of less than about 0.7 gram per cubic centimeter and a particle size less than about 500 microns.
Claim 13
Dependent Claim
38 words
A composition of claim 11 wherein the epihalohydrin polymer is selected from the group consisting of a homopolymer of an epihalohydrin monomer and a copolymer of an epihalohydrin monomer and an oxide monomer containing a cyclic oxy ring.
Claim 14
Dependent Claim
14 words
A composition of claim 12 wherein the epihalohydrin polymer is a homopolymer of epichlorohydrin.
Claim 15
Dependent Claim
24 words
A composition of claim 13 wherein the fiber reinforcement is chopped glass fiber having a length of from about 0.1 to about 3 inches.
Claim 16
Dependent Claim
31 words
A composition of claim 3 wherein the epihalohydrin polymer is selected from the group consisting of a homopolymer of an epihalohydrin monomer and an oxide monomer containing a cyclic oxy ring.
Claim 17
Dependent Claim
38 words
A composition of claim 15 wherein the level of epihalohydrin polymer is from about 1 to about 15 parts by weight per 100 parts by weight of the combined weight of said unsaturated polyester resin and polymerizable monomer.
Claim 18
Dependent Claim
14 words
A composition of claim 16 wherein the epihalohydrin polymer is a homopolymer of epichlorohydrin.
Claim 19
Dependent Claim
6 words
A cured composition of claim 1.
Claim 20
Dependent Claim
55 words
A process for producing a moldable unsaturated polyester composition which comprises mixing at least one unsaturated polyester resin with at least one polymerizable monomer and from about 1 to about 30 parts by weight of epihalohydrin polymer per 100 parts by weight of the combined weight of said unsaturated polyester resin and said polymerizable monomer.
Claim 21
Dependent Claim
55 words
A process for producing a moldable unsaturated polyester composition which comprises mixing at least one unsaturated polyester resin with at least one polymerizable monomer and from about 1 to about 30 parts by weight of epihalohydrin polymer per 100 parts by weight of the combined weight of said unsaturated polyester resin and said polymerizable monomer.
Claim 22
Dependent Claim
22 words
A process of claim 19 wherein the epihalohydrin polymer has a number average molecular weight of from about 800 to about 50,000.
Claim 23
Dependent Claim
39 words
A process of claim 20 with the added steps of (a) mixing a catalytic amount of a catalyst with the composition, (b) mixing reinforcing fibers with the composition, and (c) mixing a thermoplastic low profile additive with the composition.
Claim 24
Dependent Claim
30 words
A process of claim 21 with the added step of mixing a thickening agent with the composition wherein said thickening agent is an oxide or hydroxide of magnesium or calcium.
Claim 25
Dependent Claim
72 words
A process of claim 22 wherein the epihalohydrin polymer is selected from the group consisting of a homopolymer of an epihalohydrin monomer and a copolymer of an epihalohydrin monomer and an oxide monomer containing a cyclic oxy ring, and wherein the level of said epihalohydrin polymer is from about1 to about 15 parts by weight per 100 parts by weight of the combined weight of said unsaturated polyester resin and polymerizable monomer.
Claim 26
Dependent Claim
14 words
A process of claim 23 wherein the epihalohydrin polymer is a homopolymer of epichlorohydrin.
Claim 27
Dependent Claim
45 words
A shaped article comprising: (a) an unsaturated polyester resin, (b) a polymerizable monomer, and (c) from about 1 to about 30 parts by weight of an epihalohydrin polymer per 100 parts by weight of the combined weight of said unsaturated polyester resin and polymerizable monomer.
Claim 28
Dependent Claim
45 words
A shaped article comprising: (a) an unsaturated polyester resin, (b) a polymerizable monomer, and (c) from about 1 to about 30 parts by weight of an epihalohydrin polymer per 100 parts by weight of the combined weight of said unsaturated polyester resin and polymerizable monomer.
Claim 29
Dependent Claim
22 words
An article of claim 25 wherein the epihalohydrin polymer has a number average molecular weight of from about 800 to about 50,000.
Claim 30
Dependent Claim
24 words
An article of claim 26 containing fiber reinforcement wherein said fibers are selected from the group consisting of glass, nylon, polyester and aromatic polyamide.
Claim 31
Dependent Claim
38 words
An article of claim 27 wherein the level of epihalohydrin polymer is from about 1 to about 15 parts by weight per 100 parts by weight of the combined weight of said unsaturated polyester resin and polymerizable monomer.
Claim 32
Dependent Claim
11 words
An article of claim 28 containing a thermoplastic low profile additive.
Claim 33
Dependent Claim
38 words
An article of claim 29 wherein the epihalohydrin polymer is selected from the group consisting of a homopolymer of an epihalohydrin monomer and a copolymer of an epihalohydrin monomer and an oxide monomer containing a cyclic oxy ring.
Claim 34
Dependent Claim
14 words
An article of claim 30 wherein the epihalohydrin polymer is a homopolymer of epichlorohydrin.
Claim 35
Dependent Claim
24 words
An article of claim 31 wherein the fiber reinforcement is chopped glass fiber having a length of from about 0.1 to about 3 inches.
Claim 36
Dependent Claim
33 words
An article of claim 32 containing glass bubbles wherein said glass bubbles have a density of less than about 0.7 gram per cubic centimeter and a particle size less than about 500 microns.
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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) | 1981-07-17 | 1982-01-16 | 1982-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-07-17 | 1986-01-16 | 1986-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-07-17 | 1990-01-16 | 1990-07-18 | $7700.00 | Window Closed / Lapsed |