US4024100A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polysiloxane modified coatings
Assignee: Bayer AG
•
Filing: 1975-02-12
•
Granted: 1977-05-17
•
Expires: 1995-02-12
Abstract
Abstract Highly deformable coatings which are capable of being deep drawn and which are persistent to sterilization can be obtained by using a binder which comprises a mixture of 5 - 30 parts by weight of a benzoguanamine resin and 95 - 70 parts by weight of a polyester which contains o-phthalic acid groups, dihydric and/or trihydric alcohols modified by a polysiloxane of the formula <IMAGE> WHEREIN N IS FROM 2 TO 5, R1 and R4 are alkyl having 1 to 4 carbon atoms, phenyl, tolyl or benzyl and R2 and R3 are alkyl having 1 to 4 carbon atoms, alkoxy having 1 to 4 carbon atoms, phenyl, tolyl or benzyl.
Inventors
- 👤 Peter Kuhn
- 👤 Karl Raichle
- 👤 Rolf Kuchenmeister
- 👤 Bernd Peltzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:45
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/91; C08G63/914; C09; C09D; C09D167/00
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
195 words
A composition containing 5 to 30 parts by weight of an aminoplast which is based on a benzoguanamine resin and 95 to 70 parts by weight of a polysiloxane modified saturated polyester which is the condensation product of aromatic and aliphatic dicarboxylic acids, at least one polyol having up to three hydroxyl groups and a polysiloxane, from 100 to 40 mol % of said aromatic dicarboxylic acid being o-phthalic acid, from 85 to 100 mol % of said polyol being a diol and from 0 to 15 mol % of said polyol being a triol, said polysiloxane being of the formula: ##STR4## wherein n is from 2 to 5, R 1 and R 4 are alkyl having 1 to 4 carbon atoms, phenyl, tolyl or benzyl, and R 2 and R 3 are alkyl having 1 to 4 carbon atoms, alkoxy having 1 to 4 carbon atoms, phenyl, tolyl or benzyl and 100 parts by weight of the polysiloxane modified polyester contain 1 to 11 parts by weight of the polysiloxane and said polysiloxane modified saturated polyester being dissolved in a solvent to produce a solution having a solids content of from 40 to 70%.
Claim 2
Dependent Claim
195 words
A composition containing 5 to 30 parts by weight of an aminoplast which is based on a benzoguanamine resin and 95 to 70 parts by weight of a polysiloxane modified saturated polyester which is the condensation product of aromatic and aliphatic dicarboxylic acids, at least one polyol having up to three hydroxyl groups and a polysiloxane, from 100 to 40 mol % of said aromatic dicarboxylic acid being o-phthalic acid, from 85 to 100 mol % of said polyol being a diol and from 0 to 15 mol % of said polyol being a triol, said polysiloxane being of the formula: ##STR4## wherein n is from 2 to 5, R 1 and R 4 are alkyl having 1 to 4 carbon atoms, phenyl, tolyl or benzyl, and R 2 and R 3 are alkyl having 1 to 4 carbon atoms, alkoxy having 1 to 4 carbon atoms, phenyl, tolyl or benzyl and 100 parts by weight of the polysiloxane modified polyester contain 1 to 11 parts by weight of the polysiloxane and said polysiloxane modified saturated polyester being dissolved in a solvent to produce a solution having a solids content of from 40 to 70%.
Claim 3
Dependent Claim
29 words
The composition according to claim 1, which are characterised in that 100 parts by weight of the polysiloxane modified polyester contain 1 to 8 parts by weight of polysiloxane.
Claim 4
Dependent Claim
27 words
The composition according to claim 1 characterised in that 100 parts by weight of the polysiloxane modified polyester contain 2 to 6 parts by weight of polysiloxane.
Claim 5
Dependent Claim
23 words
The composition according to claim 1, characterised in that it contains bis-oxethylbisphenol groups as one of the diol components in the polyester portion.
Claim 6
Dependent Claim
27 words
The composition according to claim 1, characterised in that 100 to 70 mols % of the aromatic carboxylic acid groups in the polyester consist of o-phthalic acid.
Claim 7
Dependent Claim
22 words
The composition according to claim 1, characterised in that the aromatic carboxylic acid groups in the polyester consist exclusively of o-phthalic acid.
Claim 8
Dependent Claim
31 words
The composition according to claim 1, characterized in that 90 to 100 mols % of said polyol is a diol and from 0 to 10 mol % thereof is a triol.
Claim 9
Dependent Claim
31 words
The composition according to claim 1, characterized in that 95 to 100 mols % of said polyol is a diol and from 0 to 5 mol % thereof is a triol.
Claim 10
Dependent Claim
18 words
The composition according to claim 1, characterized in that the sole triol component of said polyester is glycerol.
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) | 1980-05-16 | 1980-11-15 | 1981-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-05-16 | 1984-11-15 | 1985-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-05-16 | 1988-11-15 | 1989-05-17 | $7700.00 | Window Closed / Lapsed |