US3721640A
Expired / Lapsed
US
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Crosslinkable coating agents
Assignee: BASF SE
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Filing: 1970-12-03
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Granted: 1973-03-20
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Expires: 1990-12-03
Abstract
Abstract Crosslinkable coating agents based on an organic dispersion (I) of a crosslinkable copolymer (A) which dispersion is stable without an emulsifier and a diisocyanate or polyisocyanate (II). The organic dispersion (I) of the copolymer (A) is prepared by the copolymerization of: A. POLYMERIZABLE COMPOUNDS CONTAINING HYDROXYL GROUPS, WITH B. OTHER COMONOMERS IN C. AN ORGANIC LIQUID IN WHICH THE COPOLYMER (A) formed is not soluble, and in the presence of (B) a copolymer of comonomers from groups (a) and (b) and which is soluble in the organic liquid (c).
Inventors
- 👤 H Wilheim
- 👤 K Gulbins
- 👤 H Hartmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:22
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/564; C; C08; C08F; C08F2/00; C08F2/04; C08F2/06; C08F2/08; C08F265/00; C08F265/04; C08F265/06; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/62; C08G18/6212; C08G18/6216; C08G18/622; C08G18/6225; C08G18/6266; C08G18/63; C08G18/633; C09; C09D; C09D151/00; C09D151/003
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
84 words
A crosslinkable coating agent as claimed in claim 1 having the following contents of comonomers (a) and (b) in the dispersion (I): comonomer (a): 2 to 40 percent by weight, comonomer (b): 98 to 60 percent by weight, each with reference to (A) and comonomer (a): 2 to 50 percent by weight comonomer (b): 98 to 50 percent by weight, each with reference to (B), and wherein said isocyanate constitutes 2-30 percent by weight with reference to the solids content of the dispersion (I).
Claim 2
Dependent Claim
65 words
A crosslinkable coating agent as claimed in claim 1 having the following contents of comonomers (a) and (b) in the dispersion (I): comonomer (a): 2 to 40 percent by weight, comonomer (b): 98 to 60 percent by weight, each with reference to (A) and comonomer (a): 2 to 50 percent by weight comonomer (b): 98 to 50 percent by weight, each with reference to (B).
Claim 3
Dependent Claim
67 words
A crosslinkable coating agent as claimed in claim 1 having the following contents of comonomers (a) and (b) in the dispersion (I): comonomer (a): 5 to 35 percent by weight comonomer (b): 95 to 75 percent by weight in each case with reference to (A) and comonomer (a): 5 to 30 percent by weight comonomer (b): 95 to 70 percent by weight, each with reference to (B).
Claim 4
Dependent Claim
29 words
A crosslinkable coating agent as claimed in claim 1 wherein the dispersion (I) contains 3 to 100 percent by weight of copolymer (B) with reference to the copolymer (A).
Claim 5
Dependent Claim
27 words
A crosslinkable coating agent as claimed in claim 1 wherein the dispersion (I) contains 5 to 30 percent of copolymer (B) with reference to the copolymer (A)
Claim 6
Dependent Claim
32 words
A crosslinkable coating agent as claimed in claim 1 wherein 2 to 30 percent by weight of said isocyanate (II) is used with reference to the solids content of the dispersion (I).
Claim 7
Dependent Claim
32 words
A crosslinkable coating agent as claimed in claim 2 wherein 5 to 12 percent by weight of said isocyanate (II) is used with reference to the solids content of the dispersion (I).
Claim 8
Dependent Claim
37 words
A crosslinkable coating agent as claimed in claim 3 wherein said comonomer (a) is a partial ester of acrylic acid, methacrylic acid or maleic acid with a polyhydric saturated, aliphatic, alcohol containing two to eight carbon atoms.
Claim 9
Dependent Claim
16 words
A crosslinkable coating agent as claimed in claim 3 wherein said comonomer (a) is butanediol monoacrylate.
Claim 10
Dependent Claim
16 words
A crosslinkable coating agent as claimed in claim 3 wherein said comonomer (a) is propanediol monoacrylate.
Claim 11
Dependent Claim
17 words
A crosslinkable coating agent as claimed in claim 3 wherein said comonomer (a) is ethylene glycol monoacrylate.
Claim 12
Dependent Claim
22 words
A crosslinkable coating agent as claimed in claim 3 wherein said comonomer (a) is a mixture of butanediol monoacrylate and N-methylol methacrylamide.
Claim 13
Dependent Claim
73 words
A process for using a crosslinkable coating agent as claimed in claim 1 for resin finishing textile material, paper or leather, for coating wood, glass, ceramics and concrete, or as a binder for the production of bonded nonwoven fabrics and laminated articles, which comprises applying said coating agent to one of said materials and heating to about 60* to 160* C in order to vaporize the organic solvent and crosslink the coating agent.
Claim 14
Dependent Claim
33 words
A crosslinkable coating agent as claimed in claim 3 wherein copolymer (A) has a K-value in the range of 30 to 100 and copolymer (B) has a K-value in the range of 15-30.
Claim 15
Dependent Claim
33 words
A crosslinkable coating agent as claimed in claim 2 wherein copolymer (A) has a K-value in the range of 30 to 100 and copolymer (B) has a K-value in the range of 15-30.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-03-19 | 1976-09-18 | 1977-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-19 | 1980-09-18 | 1981-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-19 | 1984-09-18 | 1985-03-20 | $7700.00 | Window Closed / Lapsed |