Patent US3297903A successfully refreshed from Google Patents.
US4243793A
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Prepolymers for photocurable compositions
Assignee: Phillips Petroleum Co
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Filing: 1978-07-28
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Granted: 1981-01-06
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Expires: 1998-07-28
Abstract
Abstract A prepolymer for use in preparing photocurable compositions is prepared by reacting an aliphatic diisocyanate having terminal isocyano groups and at least one alkyl side chain with a hydroxy-, mercapto- or amino-containing olefinically unsaturated compound. This prepolymer is compounded with a photosensitizer and, optionally, a polymercaptan to prepare photocurable compositions.
Inventors
- 👤 Ralph P. Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 04:02
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03F7/027; C; C08; C08F; C08F26/00; C08G; C08G18/00; C08G18/04; C08G75/00; C08G75/02; C08G75/04; C08L; C08L81/00; C08L81/04; G03F7/0275
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
200 words
A composition formed by the reaction of (A) an aliphatic diisocyanate having from 9 to 32 carbon atoms per molecule and at least one alkyl side-chain characterized by the formula ##STR5## where each R is individually selected from the group consisting of hydrogen and alkyl having from 1 to 6 carbon atoms; x and y are, individually, integers having values in the range of 2 to 16; z is an integer having a value in the range of 0 to 5; and the sum of (x+y) is in the range of 5 to 23; and (B) an unsaturated compound having a maximum of 12 carbon atoms per molecule characterized by the formula ##STR6## wherein each R i is individually selected from the group consisting of hydrogen and alkyl having from 1 to 6 carbon atoms, n is an integer having a value in the range of 1 to 6, and Z is selected from the group consisting of --OH, --SH, and --NHR ii wherein R ii is selected from the group consisting of R i and alkenyl having from 1 to 6 carbon atoms; wherein the reactant ratio of said diisocyanate (A) to said unsaturated compound (B) is about 1:2.
Claim 2
Dependent Claim
200 words
A composition formed by the reaction of (A) an aliphatic diisocyanate having from 9 to 32 carbon atoms per molecule and at least one alkyl side-chain characterized by the formula ##STR5## where each R is individually selected from the group consisting of hydrogen and alkyl having from 1 to 6 carbon atoms; x and y are, individually, integers having values in the range of 2 to 16; z is an integer having a value in the range of 0 to 5; and the sum of (x+y) is in the range of 5 to 23; and (B) an unsaturated compound having a maximum of 12 carbon atoms per molecule characterized by the formula ##STR6## wherein each R i is individually selected from the group consisting of hydrogen and alkyl having from 1 to 6 carbon atoms, n is an integer having a value in the range of 1 to 6, and Z is selected from the group consisting of --OH, --SH, and --NHR ii wherein R ii is selected from the group consisting of R i and alkenyl having from 1 to 6 carbon atoms; wherein the reactant ratio of said diisocyanate (A) to said unsaturated compound (B) is about 1:2.
Claim 3
Dependent Claim
16 words
The composition of claim 1 wherein said diisocyanate molecule contains from 10 to 18 carbon atoms.
Claim 4
Dependent Claim
16 words
The composition of claim 1 wherein said diisocyanate molecule contains from 11 to 14 carbon atoms.
Claim 5
Dependent Claim
18 words
The composition of claim 2 wherein said diisocyanate is a mixture of isomers containing 5-methyl-1,9-nonanediisocyanate in major amount.
Claim 6
Dependent Claim
10 words
The composition of claim 3 wherein said Z is --OH.
Claim 7
Dependent Claim
10 words
The composition of claim 3 wherein said Z is --SH.
Claim 8
Dependent Claim
11 words
The composition of claim 3 wherein Z is --NHR ii .
Claim 9
Dependent Claim
12 words
The composition of claim 7 wherein said unsaturated compound (B) is diallylamine.
Claim 10
Dependent Claim
208 words
A composition formed by the reaction of (A) an aliphatic diisocyanate having from 9 to 32 carbon atoms per molecule and at least one alkyl side-chain characterized by the formula ##STR7## wherein each R is individually selected from the group consisting of hydrogen and alkyl having from 1 to 6 carbon atoms; x and y are, individually, integers having values in the range of 2 to 16; z is an integer having a value in the range of 0 to 5; and the sum of (x+y) is in the range of 5 to 23; and (B) an unsaturated compound having a maximum of 12 carbon atoms per molecule characterized by the formula ##STR8## wherein each R i is individually selected from the group consisting of hydrogen and alkyl having from 1 to 6 carbon atoms, n is an integer having a value in the range of 1 to 6, Y is selected from the group consisting of ##STR9## R ii is selected from the group consisting of R i and alkenyl having from 1 to 6 carbon atoms, and Z is selected from the group consisting of --SH and --NHR ii ; wherein the reactant ratio of said diisocyanate (A) to said unsaturated compound (B) is about 1:2.
Claim 11
Dependent Claim
208 words
A composition formed by the reaction of (A) an aliphatic diisocyanate having from 9 to 32 carbon atoms per molecule and at least one alkyl side-chain characterized by the formula ##STR7## wherein each R is individually selected from the group consisting of hydrogen and alkyl having from 1 to 6 carbon atoms; x and y are, individually, integers having values in the range of 2 to 16; z is an integer having a value in the range of 0 to 5; and the sum of (x+y) is in the range of 5 to 23; and (B) an unsaturated compound having a maximum of 12 carbon atoms per molecule characterized by the formula ##STR8## wherein each R i is individually selected from the group consisting of hydrogen and alkyl having from 1 to 6 carbon atoms, n is an integer having a value in the range of 1 to 6, Y is selected from the group consisting of ##STR9## R ii is selected from the group consisting of R i and alkenyl having from 1 to 6 carbon atoms, and Z is selected from the group consisting of --SH and --NHR ii ; wherein the reactant ratio of said diisocyanate (A) to said unsaturated compound (B) is about 1:2.
Claim 12
Dependent Claim
16 words
The composition of claim 9 wherein said diisocyanate molecule contains from 10 to 18 carbon atoms.
Claim 13
Dependent Claim
16 words
The composition of claim 9 wherein said diisocyanate molecule contains from 11 to 14 carbon atoms.
Claim 14
Dependent Claim
18 words
The composition of claim 11 wherein said diisocyanate is a mixture of isomers containing 5-methyl-1,9-nonanediisocyanate in major amount.
Claim 15
Dependent Claim
19 words
The composition of claim 11 wherein said Y is --CONR ii - and said Z is --NHR ii .
Claim 16
Dependent Claim
17 words
The composition of claim 11 wherein said Y is --COO-- and said Z is --NHR ii .
Claim 17
Dependent Claim
15 words
The composition of claim 11 wherein said Y is --COO-- and said Z is --SH.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-01-06 | 1984-07-07 | 1985-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-01-06 | 1988-07-07 | 1989-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-01-06 | 1992-07-07 | 1993-01-06 | $7700.00 | Window Closed / Lapsed |