Patent US3496092A successfully refreshed from Google Patents.
US3880950A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Uncured unsaturated polyester composition
Assignee: Kuraray Co Ltd
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Filing: 1973-05-11
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Granted: 1975-04-29
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Expires: 1993-05-11
Abstract
Abstract An uncured unsaturated polyester resin composition useful in the production of molded articles of cured unsaturated polyester resins, the composition comprising (1) 60 to 97% by weight of an uncured unsaturated polyester resin which is a liquid mixture of at least one unsaturated polyester and at least one unsaturated monomer for curing the polyester, and (2) 40 to 3% by weight of a modifying polymer of the microgel structure which is obtained by polymerizing 97 to 30% by weight of at least one radical polymerizable monomer in the presence of 3 to 70% by weight of at least one rubbery polymer having double bonds in the molecule, is finely dispersible, without dissolving, in both of said unsaturated polyester resin and said unsaturated monomer for curing the polyester, and contains 0.1 to 10% by weight of carboxyl groups in the molecule.
Inventors
- 👤 Kazuo Hara
- 👤 Satoshi Bando
- 👤 Toshihiko Yoshitake
- 👤 Takeo Tasaka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:47
CPC Classifications
C; C08; C08L; C08L67/00; C08L67/06
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
182 words
AN UNCURED UNSATURATED POLYESTER RESIN COMPOSITION USEFUL IN THE PRODUCTION OF MOLDED ARTICLES OF CURED UNSATURATED POLYESTER RESIN, THE COMPOSITION COMPRISING 1. 60 TO 97% BY WEIGHT OF AN UNCURED UNSATURATED POLYESTER RESIN WHICH IS A LIQUID MIXTURE OF AT LEAST ONE UNSATURATED POLYESTER SELECTED FROM THE GROUP CONSISTING OF THE UNSATURATED POLYESTERS FROM UNSATURATED DIBASIC CARBOXYLIC ACID AND THE ANHYDRIDE AND DIMETHYLESTERS THEREOF, ETHYLENE OXIDE, PROPYLENE OXIDE OR FROM SAID UNSATURATED DIBASIC CARBOXYLIC ACID TOGETHER WITH SATURATED DICARBOXYLIC ACID AND SAID DIOL AND AT LEAST ONE VINYL MONOMER FOR CURING THE POLYESTER, AND 2. 40 TO 3% BY WEIGHT OF A MODIFYING POLYMER OF THE MICROGEL STRUCTURE WHICH IS OBTAINED BY POLYMERIZING, 97 TO 30 % BY WEIGHT OF AT LEAST ONE VINYL MONOMER IN THE PRESENCE OF 3 TO 70% BY WEIGHT OF AT LEAST ONE RUBBERY POLYMER HAVING CARBON TO CARBON DOUBLE BONDS IN THE MOLECULE, IS FINELY DISPERSIBLE, WITHOUT DISSOLVING, IN BOTH OF SAID UNSATURATED POLYESTER RESIN AND SAID UNSATURATED MONOMER FOR CURING THE POLYESTER, AND CONTAINS 0.1 TO 10% BY WEIGHT OF CARBOXYL GROUPS IN THE MOLECULE.
Claim 2
Dependent Claim
182 words
AN UNCURED UNSATURATED POLYESTER RESIN COMPOSITION USEFUL IN THE PRODUCTION OF MOLDED ARTICLES OF CURED UNSATURATED POLYESTER RESIN, THE COMPOSITION COMPRISING 1. 60 TO 97% BY WEIGHT OF AN UNCURED UNSATURATED POLYESTER RESIN WHICH IS A LIQUID MIXTURE OF AT LEAST ONE UNSATURATED POLYESTER SELECTED FROM THE GROUP CONSISTING OF THE UNSATURATED POLYESTERS FROM UNSATURATED DIBASIC CARBOXYLIC ACID AND THE ANHYDRIDE AND DIMETHYLESTERS THEREOF, ETHYLENE OXIDE, PROPYLENE OXIDE OR FROM SAID UNSATURATED DIBASIC CARBOXYLIC ACID TOGETHER WITH SATURATED DICARBOXYLIC ACID AND SAID DIOL AND AT LEAST ONE VINYL MONOMER FOR CURING THE POLYESTER, AND 2. 40 TO 3% BY WEIGHT OF A MODIFYING POLYMER OF THE MICROGEL STRUCTURE WHICH IS OBTAINED BY POLYMERIZING, 97 TO 30 % BY WEIGHT OF AT LEAST ONE VINYL MONOMER IN THE PRESENCE OF 3 TO 70% BY WEIGHT OF AT LEAST ONE RUBBERY POLYMER HAVING CARBON TO CARBON DOUBLE BONDS IN THE MOLECULE, IS FINELY DISPERSIBLE, WITHOUT DISSOLVING, IN BOTH OF SAID UNSATURATED POLYESTER RESIN AND SAID UNSATURATED MONOMER FOR CURING THE POLYESTER, AND CONTAINS 0.1 TO 10% BY WEIGHT OF CARBOXYL GROUPS IN THE MOLECULE.
Claim 3
Dependent Claim
90 words
40 to 3 % by weight of a modifying polymer of the microgel structure which is obtained by polymerizing, 97 to 30 % by weight of at least one vinyl monomer in the presence of 3 to 70 % by weight of at least one rubbery polymer having carbon to carbon double bonds in the molecule, is finely dispersible, without dissolving, in both of said unsaturated polyester resin and said unsaturated monomer for curing the polyester, and contains 0.1 to 10 % by weight of carboxyl groups in the molecule.
Claim 4
Dependent Claim
90 words
40 to 3 % by weight of a modifying polymer of the microgel structure which is obtained by polymerizing, 97 to 30 % by weight of at least one vinyl monomer in the presence of 3 to 70 % by weight of at least one rubbery polymer having carbon to carbon double bonds in the molecule, is finely dispersible, without dissolving, in both of said unsaturated polyester resin and said unsaturated monomer for curing the polyester, and contains 0.1 to 10 % by weight of carboxyl groups in the molecule.
Claim 5
Dependent Claim
21 words
An uncured unsaturated polyester resin composition useful in the production of molded articles of cured unsaturated polyester resins, the composition comprising
Claim 6
Dependent Claim
21 words
An uncured unsaturated polyester resin composition useful in the production of molded articles of cured unsaturated polyester resins, the composition comprising
Claim 7
Dependent Claim
149 words
40 to 3 % by weight of a combined modifying polymer component which comprises a. 80 to 5 % by weight of a polymer of the microgel structure which is obtained by polymerizing 97 to 30 % by weight of at least one radical polymerizable monomer in the presence of 3 to 70 % by weight of at least one rubbery polymer having double bonds in the molecule, and is finely dispersible, without dissolving, in both of said unsaturated polyester resin and said unsaturated monomer for curing the polyester, and b. 20 to 95 % by weight of at least one thermoplastic polymer soluble in at least one of said unsaturated polyester resin and said unsaturated monomer for curing the polyester, at least one of polymers (a) and (b) containing carboxyl groups being 0.1 to 10 % by weight based on the total weight of polymers (a) and (b).
Claim 8
Dependent Claim
149 words
40 to 3 % by weight of a combined modifying polymer component which comprises a. 80 to 5 % by weight of a polymer of the microgel structure which is obtained by polymerizing 97 to 30 % by weight of at least one radical polymerizable monomer in the presence of 3 to 70 % by weight of at least one rubbery polymer having double bonds in the molecule, and is finely dispersible, without dissolving, in both of said unsaturated polyester resin and said unsaturated monomer for curing the polyester, and b. 20 to 95 % by weight of at least one thermoplastic polymer soluble in at least one of said unsaturated polyester resin and said unsaturated monomer for curing the polyester, at least one of polymers (a) and (b) containing carboxyl groups being 0.1 to 10 % by weight based on the total weight of polymers (a) and (b).
Claim 9
Dependent Claim
30 words
The composition of claim 1 wherein said modifying polymer of the microgel structure further contains at least one kind of polar group other than a carboxyl group in the molecule.
Claim 10
Dependent Claim
33 words
The composition of claim 2 wherein at least one of said modifying polymers (a) and (b) further contains at least one kind of polar group other than a carboxyl group in the molecule.
Claim 11
Dependent Claim
40 words
The composition of claim 1 wherein said modifying polymer of the microgel structure is a polymer obtained by copolymerizing an unsaturated carboxylic acid with at least one of styrene, methyl methacrylate and acrylonitrile in the presence of polybutadiene or polyisoprene.
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) | 1978-04-28 | 1978-10-28 | 1979-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-28 | 1982-10-28 | 1983-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-28 | 1986-10-28 | 1987-04-29 | $7700.00 | Window Closed / Lapsed |