US4468492A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymeric organo functional silanes as reactive modifying materials
Assignee: PPG Industries Inc
•
Filing: 1983-07-15
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Granted: 1984-08-28
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Expires: 2003-07-15
Abstract
Abstract A low temperature curing composition prepared from an essentially silicon-free polymer and a silicon group-containing material is improved by utilizing a silicon group-containing material which is a hydrolyzable organosilicon group-containing polymer which is non-gelled and formed from an essentially silicon-free polymer having isocyanate or active hydrogen functional groups and an organosilicon group-containing material having functional groups reactive with the isocyanate and active hydrogen.
Inventors
- 👤 Robert Piccirilli
- 👤 Wen-Hsuan Chang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 15:59
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/08; C08G18/10; C09; C09D; C09D175/00; C09D175/04
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
65 words
An improved low temperature curing composition, comprising an essentially silicon-free polymer and a silicon group-containing material, characterized in that the silicon group-containing material is a hydrolyzable, non-gelled organosilicon group-containing polymer formed from reacting: (a) an essentially silicon-free polymer having functional groups which are selected from isocyanate and active hydrogen; and (b) an organosilicon group-containing material having functional groups reactive with the isocyanate and active hydrogen.
Claim 2
Dependent Claim
65 words
An improved low temperature curing composition, comprising an essentially silicon-free polymer and a silicon group-containing material, characterized in that the silicon group-containing material is a hydrolyzable, non-gelled organosilicon group-containing polymer formed from reacting: (a) an essentially silicon-free polymer having functional groups which are selected from isocyanate and active hydrogen; and (b) an organosilicon group-containing material having functional groups reactive with the isocyanate and active hydrogen.
Claim 3
Dependent Claim
26 words
The curable composition of claim 1 wherein the essentially silicon-free polymer is a hard, film-forming having a cured glass transition temperature of greater than 25° C.
Claim 4
Dependent Claim
24 words
The curable composition of claim 2 wherein the hydrolyzable, non-gelled organosilicon group-containing polymer has a cured glass transition temperature of less than 5° C.
Claim 5
Dependent Claim
18 words
The curable composition of claim 1 wherein the essentially silicon free polymer of (a) is a condensation polymer.
Claim 6
Dependent Claim
16 words
The curable composition of claim 1 wherein the organosilicon group-containing material is an organosilicon group-containing monomer.
Claim 7
Dependent Claim
92 words
An improved low temperature curing composition, comprising a hard film-forming polymer which has a cured glass transition temperature of greater than 25° C. and a plasticizer, characterized in that the plasticizer is a hydrolyzable organosilicon group-containing polymer which has a cured glass transition temperature of less than 5° C.; said hydrolyzable organosilicon group-containing polymer being non-gelled and formed from (a) a condensation polymer having terminal functional groups which are selected from isocyanate and active hydrogen; and (b) an organosilicon group-containing monomer having a terminal functional group selected from isocyanate and active hydrogen.
Claim 8
Dependent Claim
92 words
An improved low temperature curing composition, comprising a hard film-forming polymer which has a cured glass transition temperature of greater than 25° C. and a plasticizer, characterized in that the plasticizer is a hydrolyzable organosilicon group-containing polymer which has a cured glass transition temperature of less than 5° C.; said hydrolyzable organosilicon group-containing polymer being non-gelled and formed from (a) a condensation polymer having terminal functional groups which are selected from isocyanate and active hydrogen; and (b) an organosilicon group-containing monomer having a terminal functional group selected from isocyanate and active hydrogen.
Claim 9
Dependent Claim
16 words
The composition of claim 6 wherein the condensation polymer has a functionality of 6 or less.
Claim 10
Dependent Claim
16 words
The composition of claim 7 wherein the condensation polymer has a functionality of 4 or less.
Claim 11
Dependent Claim
16 words
The composition of claim 8 wherein the condensation polymer has a functionality of 3 or less.
Claim 12
Dependent Claim
18 words
The composition of claim 6 wherein the condensation polymer has a peak molecular weight of at least 500.
Claim 13
Dependent Claim
19 words
The composition of claim 10 wherein the peak molecular weight is within the range of from 2000 to 50,000.
Claim 14
Dependent Claim
19 words
The composition of claim 11 wherein the peak molecular weight is within the range of from 5000 to 50,000.
Claim 15
Dependent Claim
19 words
The composition of claim 12 wherein the peak molecular weight is within the range of from 15,000 to 50,000.
Claim 16
Dependent Claim
19 words
The composition of claim 13 wherein the peak molecular weight is within the range of from 15,000 to 30,000.
Claim 17
Dependent Claim
12 words
The composition of claim 6 wherein the condensation polymer is a polyurethane.
Claim 18
Dependent Claim
14 words
THe composition of claim 6 wherein the condesation polymer contains terminal active hydrogen groups.
Claim 19
Dependent Claim
21 words
The composition of claim 6 wherein the organosilicon group-containing monomer has from 1 to 3 hydrolyzable alkoxy groups bonded to silicon.
Claim 20
Dependent Claim
54 words
The composition of claim 6 wherein the organosilicon group-containing monomer has the following moieties: --Si--(X) m (Y) 3-m wherein X is a hydrolyzable alkoxy group containing from 1 to 4 carbon atoms, Y is hydrogen or alkyl containing from 1 to 4 carbon atoms, and m is an integer of from 1 to 3.
Claim 21
Dependent Claim
15 words
The composition of claim 6 wherein the organosilicon group-containing monomer has a terminal isocyanate group.
Claim 22
Dependent Claim
16 words
The composition of claim 6 wherein the organosilicon group-containing monomer has a terminal primary amine group.
Claim 23
Dependent Claim
12 words
The composition of claim 19 wherein the organosilicon group-containing monomer is isocyanatopropyltriethoxysilane.
Claim 24
Dependent Claim
12 words
The composition of claim 20 wherein the organosilicon group-containing monomer is aminopropyltirethoxysilane.
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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) | 1987-08-28 | 1988-02-27 | 1988-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-08-28 | 1992-02-27 | 1992-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-08-28 | 1996-02-27 | 1996-08-28 | $7700.00 | Window Closed / Lapsed |