US4451622A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Urethane prepolymers crosslinked with amino crosslinking agents
Assignee: Henkel Corp
•
Filing: 1983-04-12
•
Granted: 1984-05-29
•
Expires: 2003-04-12
Abstract
Abstract A composition of matter comprised of hydroxy-terminated urethane prepolymer and an amino crosslinking agent is disclosed. The composition is useful as a high solids coating.
Inventors
- 👤 Edward Didomenico, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:53
CPC Classifications
C; C08; C08L; C08L75/00; C08L75/04
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
110 words
A composition of matter comprising (i) a hydroxy-terminated urethane prepolymer derived from a polyisocyanate and a polyol selected from the group consisting of hydroxymethyl polyols of the formulae: H(CH.sub.2).sub.h CH(CH.sub.2 OH)(CH.sub.2).sub.k CH.sub.2 OH (I) and CH.sub.3 (CH.sub.2).sub.m [C(CH.sub.2 OH).sub.2 ].sub.n (CH.sub.2).sub.p [C(CH.sub.2 OH).sub.2 ].sub.q (CH.sub.2).sub.r [C(CH.sub.2 OH).sub.2 ].sub.s (CH.sub.2).sub.t CH.sub.2 OH (II) wherein n plus q plus s are integers, the sum of which is from 1 to 3; n, q and s are 0 or 1; m through t are integers, the sum of which is 12 to 20; and h and k are non-zero integers, the sum of which is 12 to 20 and (ii) a methylolamino compound.
Claim 2
Dependent Claim
110 words
A composition of matter comprising (i) a hydroxy-terminated urethane prepolymer derived from a polyisocyanate and a polyol selected from the group consisting of hydroxymethyl polyols of the formulae: H(CH.sub.2).sub.h CH(CH.sub.2 OH)(CH.sub.2).sub.k CH.sub.2 OH (I) and CH.sub.3 (CH.sub.2).sub.m [C(CH.sub.2 OH).sub.2 ].sub.n (CH.sub.2).sub.p [C(CH.sub.2 OH).sub.2 ].sub.q (CH.sub.2).sub.r [C(CH.sub.2 OH).sub.2 ].sub.s (CH.sub.2).sub.t CH.sub.2 OH (II) wherein n plus q plus s are integers, the sum of which is from 1 to 3; n, q and s are 0 or 1; m through t are integers, the sum of which is 12 to 20; and h and k are non-zero integers, the sum of which is 12 to 20 and (ii) a methylolamino compound.
Claim 3
Dependent Claim
11 words
The composition of claim 1, wherein said polyol is 9(10)hydroxymethyl octadecanol.
Claim 4
Dependent Claim
11 words
The composition of claim 1, wherein said polyol is 9,9(10,10)bis(hydroxymethyl) octadecanol.
Claim 5
Dependent Claim
51 words
The composition of claim 1, wherein said polyisocyanate is selected from the group consisting of toluene diisocyanate, xylene diisocyanate, isophorone diisocyanate, hexamethylene diisocyanate, the triisoxyanate adduct of hexamethylene diisocyanate and water, trimethyl hexamethylene diisocyanate, diphenylmethane diisocyanate, aliphatic diisocyanates having 12 to 40 carbon atoms in the aliphatic moiety and mixtures thereof.
Claim 6
Dependent Claim
55 words
The compoisition of claim 1, wherein said methylolamino compound is the reaction product of formaldehyde, a member selected from the group consisting of: (a) melamine; (b) urea; (c) thiourea; (d) guanamines and benzoguanamines; (e) substituted thioameline; (f) triaminopyrimidine; (g) 2-mercapto-4,6-diaminopyrimidine; (h) 2,5-diaminotriazole; (i) carbamylguanazole; (j) 2,4-diaminothiodiazole; (k) 2-oxo-4,5-diaminoparabanic acid; and (l) glycoluril, and mixtures thereof.
Claim 7
Dependent Claim
38 words
The composition of claim 1, wherein said prepolymer is present in an amount ranging from about 10 to about 90%, by weight, and said methylolamino compound is present in an amount ranging from 90 to 10%, by weight.
Claim 8
Dependent Claim
35 words
The composition of claim 1, wherein said polyol is modified with a member selected from the group consisting of ethylene oxide, propylene oxide, styrene oxide, adipic acid, the phthalic acids and caprolactone acid mixtures thereof.
Claim 9
Dependent Claim
6 words
The cured product of claim 1.
References Cited (Backward Citations)
US3962521A
Cited
US3959201A
Cited
US4125570A
Cited
US3862261A
Cited
US4017556A
Cited
US4216344A
Cited
US4229562A
Cited
US4304945A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-05-29 | 1987-11-28 | 1988-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-05-29 | 1991-11-28 | 1992-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-05-29 | 1995-11-28 | 1996-05-29 | $7700.00 | Window Closed / Lapsed |