US3865904A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Additives for powder resins
Assignee: Bayer AG
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Filing: 1972-12-15
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Granted: 1975-02-11
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Expires: 1992-12-15
Abstract
Abstract Copolymers of (meth)acrylates and Alpha , Beta monoolefinically unsaturated carboxylic acid having three to five carbon atoms are used as additives for improving levelling, glass and reactivity in powder lacquers. Said powder lacquers contain polymerized units of at least 35% by weight of styrene and (meth)acrylate and 5 to 30% by weight of at least one monomer containing a hydroxyl, carboxyl, glycidyl, N-methylol or Nmethylol ether group. The powder lacquer mixture contains 0.1 to 5% by weight of the additive.
Inventors
- 👤 Frank Wingler
- 👤 Richard Muller
- 👤 Dieter Pollheide
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:38
CPC Classifications
C; C09; C09D; C09D125/00; C09D125/02; C09D125/04; C09D125/08; C09D125/14; C08; C08F; C08F220/00; C08F220/02; C08F220/10; C08F220/12; C08F220/16; C08F220/18; C08F220/1808; C08L; C08L33/00; C08L33/04; C08L33/06; C08L33/062; C08L33/064; C08L33/08; Y; Y10; Y10S; Y10S526/00; Y10S526/934
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
39 words
A COMPOSITION FROM 0.1 TO 5% BY WEIGHT OF A SOLVENT-FREE COPPLYMER HAVING AN AVERAGE MOLECULAR WEIGHT OF FROM 1,000 TO 10,000 AND A VISCOSITY OF FROM 1 TO 1,000 POISES AT 100*C., SAID COPOLYMER COMPRISING COPOLYMERIZED UNITS OF:
Claim 2
Dependent Claim
39 words
A COMPOSITION FROM 0.1 TO 5% BY WEIGHT OF A SOLVENT-FREE COPPLYMER HAVING AN AVERAGE MOLECULAR WEIGHT OF FROM 1,000 TO 10,000 AND A VISCOSITY OF FROM 1 TO 1,000 POISES AT 100*C., SAID COPOLYMER COMPRISING COPOLYMERIZED UNITS OF:
Claim 3
Dependent Claim
189 words
FROM 1 TO 20 PARTS BY WEIGHT OF AN A,B-MONOOLEFINICALLY UNSATURATED CARBOXYLIC ACID HAVING FROM THREE TO FIVE CARBON ATOMS; II. FROM 0 TO 50 PARTS BY WEIGHT OF AN ESTER OF ACRYLIC ACID OR METHACYCIL ACID HAVING FROM ONE TO FOUR CARBON ATOMS IN THE ALCOHOL RADICAL AND III. FROM 30 TO 99 PARTS BY WEIGHT OF AN ESTER OF ACRYLIC OR METHACRYLIC ACID HAVING FROM FIVE TO 20 CARBON ATOMS IN THE ESTER ALCOHOL, AND FROM 95 TO 99.9% BY WEIGHT OF A SOLVENT-FREE COPOLYMER, SAID COPOYLMER COMPRISING COPPLYMERIZED UNITS OF: A. FROM 25 TO 60% BY WEIGHT OF STYRENE; B. FROM 10 TO 70% BY WEIGHT OF AT LEAST ONE ESTER OF ACRYLIC ACID OR METHACRYLIC ACID AND C. FROM 5 TO 30% BY WEIGHT OF AT LEAST ONE MEMBER SELECTED FROM THE GROUP CONSISTING OF A HYDROXY ALKYL ESTER OF AN A,B-UNSATURATED CARBOXYLIC ACID HAVING FROM THREE TO FIVE CARBON ATOMS AND FROM TWO TO EIGHT CARBON ATOMS IN THE HYDROXY ALKYL MOIETY; ACRYLAMIDE; METHACRYLAMIDE, AN N-METHYLOLAMIDE OF ACRYLIC OR METHACRYLIC ACID, CROTONIC ACID; FUMARIC ACID; MALEIC ACID, ITACONIC ACID; CROTONIC ACID AND METHACRYLIC ACID.
Claim 4
Dependent Claim
189 words
FROM 1 TO 20 PARTS BY WEIGHT OF AN A,B-MONOOLEFINICALLY UNSATURATED CARBOXYLIC ACID HAVING FROM THREE TO FIVE CARBON ATOMS; II. FROM 0 TO 50 PARTS BY WEIGHT OF AN ESTER OF ACRYLIC ACID OR METHACYCIL ACID HAVING FROM ONE TO FOUR CARBON ATOMS IN THE ALCOHOL RADICAL AND III. FROM 30 TO 99 PARTS BY WEIGHT OF AN ESTER OF ACRYLIC OR METHACRYLIC ACID HAVING FROM FIVE TO 20 CARBON ATOMS IN THE ESTER ALCOHOL, AND FROM 95 TO 99.9% BY WEIGHT OF A SOLVENT-FREE COPOLYMER, SAID COPOYLMER COMPRISING COPPLYMERIZED UNITS OF: A. FROM 25 TO 60% BY WEIGHT OF STYRENE; B. FROM 10 TO 70% BY WEIGHT OF AT LEAST ONE ESTER OF ACRYLIC ACID OR METHACRYLIC ACID AND C. FROM 5 TO 30% BY WEIGHT OF AT LEAST ONE MEMBER SELECTED FROM THE GROUP CONSISTING OF A HYDROXY ALKYL ESTER OF AN A,B-UNSATURATED CARBOXYLIC ACID HAVING FROM THREE TO FIVE CARBON ATOMS AND FROM TWO TO EIGHT CARBON ATOMS IN THE HYDROXY ALKYL MOIETY; ACRYLAMIDE; METHACRYLAMIDE, AN N-METHYLOLAMIDE OF ACRYLIC OR METHACRYLIC ACID, CROTONIC ACID; FUMARIC ACID; MALEIC ACID, ITACONIC ACID; CROTONIC ACID AND METHACRYLIC ACID.
Claim 5
Dependent Claim
27 words
The composition of claim 1 wherein C is selected from the group consisting of acrylic acid, fumaric acid, maleic acid, itaconic acid, crotonic acid and methacrylic acid.
Claim 6
Dependent Claim
10 words
The composition of claim 2 wherein C is acyrlic acid.
Claim 7
Dependent Claim
23 words
The composition of claim 1 wherein I is acrylic acid, III is 2-ethylhexyl acrylate, B is butyl acrylate and C is acrylic acid.
References Cited (Backward Citations)
US3551374A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-02-10 | 1978-08-12 | 1979-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-10 | 1982-08-12 | 1983-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-10 | 1986-08-12 | 1987-02-11 | $7700.00 | Window Closed / Lapsed |