US4385139A
Expired / Lapsed
US
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Synthetic resin composition, process for its preparation, its use and sheet made of said composition
Assignee: Hoechst AG
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Filing: 1981-10-09
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Granted: 1983-05-24
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Expires: 2001-10-09
Abstract
Abstract A synthetic resin composition is prepared by mixing various polymers which differ, above all, in their second order transition temperature; the composition can also contain a filler, an epoxide resin and an alcoholate. The composition is preferably obtained in the form of granules, the particle diameter being within the range from 1 to 10 mm. It is used as a starting material for the production of vibration-damping sheets.
Inventors
- 👤 Manfred Kuchler
- 👤 Gunther Duve
- 👤 Joachim Ebigt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:49
CPC Classifications
C; C08; C08L; C08L31/00; C08L31/02; C08L31/04; C08L33/00; C08L33/04; C08L33/06; C08L33/08; C08L63/00
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
171 words
A synthetic resin composition which comprises (a) 10 to 90 percent by weight of a copolymer composed of at least one acrylic acid alkyl ester having 4 to 10 carbon atoms in the alkyl radical, a methacrylic acid alkyl ester having 1, 2 or 3 carbon atoms in the alkyl radical, an amide of an unsaturated monocarboxylic acid having 3, 4 or 5 carbon atoms, and an unsaturated monocarboxylic acid having 3, 4 or 5 carbon atoms, (b) 90 to 10 percent by weight of at least one polymer of a vinyl ester having 4, 5 or 6 carbon atoms, (c) 0 to 80 percent by weight of an inorganic filler, (d) 0 to 10 percent by weight of an epoxide resin having an average epoxide equivalent weight of 100 to 5,000 and (e) 0 to 10 percent by weight of an alcoholate of a bivalent, trivalent or tetravalent metal, the quantity of the components (c), (d) and (e) being in each case related to the total of the components (a)+(b)+(c).
Claim 2
Dependent Claim
171 words
A synthetic resin composition which comprises (a) 10 to 90 percent by weight of a copolymer composed of at least one acrylic acid alkyl ester having 4 to 10 carbon atoms in the alkyl radical, a methacrylic acid alkyl ester having 1, 2 or 3 carbon atoms in the alkyl radical, an amide of an unsaturated monocarboxylic acid having 3, 4 or 5 carbon atoms, and an unsaturated monocarboxylic acid having 3, 4 or 5 carbon atoms, (b) 90 to 10 percent by weight of at least one polymer of a vinyl ester having 4, 5 or 6 carbon atoms, (c) 0 to 80 percent by weight of an inorganic filler, (d) 0 to 10 percent by weight of an epoxide resin having an average epoxide equivalent weight of 100 to 5,000 and (e) 0 to 10 percent by weight of an alcoholate of a bivalent, trivalent or tetravalent metal, the quantity of the components (c), (d) and (e) being in each case related to the total of the components (a)+(b)+(c).
Claim 3
Dependent Claim
73 words
A synthetic resin composition as claimed in claim 1 wherein the copolymer (a) has been prepared by polymerising a mixture composed of 70 to 85 percent by weight of at least one acrylic acid alkyl ester, 5 to 20 percent by weight of a methacrylic acid ester, 3 to 10 percent by weight of an amide of an unsaturated monocarboxylic acid and 0 to 5 percent by weight of an unsaturated monocarboxylic acid.
Claim 4
Dependent Claim
24 words
A synthetic resin composition as claimed in claim 1, wherein the copolymer (a) has a second order transition temperature of -50° to -10° C.
Claim 5
Dependent Claim
24 words
A synthetic resin composition as claimed in claim 1, wherein the polymer (b) has a second order transition temperature of 5° to 50° C.
Claim 6
Dependent Claim
17 words
A synthetic resin composition as claimed in claim 1, wherein the filler (c) is an inert mineral.
Claim 7
Dependent Claim
210 words
A process for the preparation of a synthetic resin composition, which comprises thoroughly mixing together, at a temperature of 150° to 180° C. for a period of 10 to 30 minutes in a kneader, (a) 10 to 90 parts by weight of a copolymer composed of at least one acrylic alkyl ester having 4 to 10 carbon atoms in the alkyl radical, a methacrylic acid alkyl ester having 1, 2 or 3 carbon atoms in the alkyl radical, an amide of an unsaturated monocarboxylic acid having 3, 4 or 5 carbon atoms, and an unsaturated monocarboxylic acid having 3, 4 or 5 carbom atons, with (b) 90 to 10 parts by weight of at least one polymer of a vinyl ester having 4, 5 or 6 carbon atoms, (c) 0 to 80 parts by weight of an inorganic filler, (d) 0 to 10 parts by weight of an epoxide resin having an average epoxide equivalent weight of 100 to 5,000 and (e) 0 to 10 parts by weight of an alcoholate of a bivalent, trivalent or tetravalent metal, the total of the components (a)+(b)+(c) amounting to 100 parts by weight, and then discharging the mixture in the form of particles having an average particle diameter of 1 to 10 mm.
Claim 8
Dependent Claim
210 words
A process for the preparation of a synthetic resin composition, which comprises thoroughly mixing together, at a temperature of 150° to 180° C. for a period of 10 to 30 minutes in a kneader, (a) 10 to 90 parts by weight of a copolymer composed of at least one acrylic alkyl ester having 4 to 10 carbon atoms in the alkyl radical, a methacrylic acid alkyl ester having 1, 2 or 3 carbon atoms in the alkyl radical, an amide of an unsaturated monocarboxylic acid having 3, 4 or 5 carbon atoms, and an unsaturated monocarboxylic acid having 3, 4 or 5 carbom atons, with (b) 90 to 10 parts by weight of at least one polymer of a vinyl ester having 4, 5 or 6 carbon atoms, (c) 0 to 80 parts by weight of an inorganic filler, (d) 0 to 10 parts by weight of an epoxide resin having an average epoxide equivalent weight of 100 to 5,000 and (e) 0 to 10 parts by weight of an alcoholate of a bivalent, trivalent or tetravalent metal, the total of the components (a)+(b)+(c) amounting to 100 parts by weight, and then discharging the mixture in the form of particles having an average particle diameter of 1 to 10 mm.
Claim 9
Dependent Claim
29 words
A process for the production of a vibration-damping sheet, which comprises calendering a synthetic resin composition as claimed in claim 1 or extruding this composition through a flat-film die.
Claim 10
Dependent Claim
13 words
Vibration-damping sheet produced from the synthetic resin composition as claimed in claim 1.
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) | 1986-05-23 | 1986-11-22 | 1987-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-05-23 | 1990-11-22 | 1991-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-05-23 | 1994-11-22 | 1995-05-24 | $7700.00 | Window Closed / Lapsed |