Patent US5081200A successfully refreshed from Google Patents.
US5081200A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Low stainable primer composition and method of producing the same
Assignee: Shin-Etsu Chemical Co Ltd
•
Filing: 1990-10-12
•
Granted: 1992-01-14
•
Expires: 2010-10-12
Abstract
Abstract A primer composition comprising a product of the reaction between an organosilane compound of the following general formula (A) and a phenyl group-free organic diisocyanate compound to acquire a high curing speed and excellent adhesiveness to both inorganic and organic materials and to resist generation of stain after curing: <IMAGE> (A) wherein R1 represents a monovalent hydrocarbon residue containing 1 to 4 carbon atoms; R2 represents a divalent hydrocarbon residue containing 1 to 4 carbon atoms; and n represents 0, 1 or 2.
Inventors
- 👤 Masaaki Yamaya
- 👤 Hideyoshi Yanagisawa
- 👤 Toshio Yamazaki
- 👤 Masayuki Takahashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:59
CPC Classifications
C; C09; C09D; C09D4/00; C08; C08G; C08G18/00; C08G18/06; C08G18/70; C08G18/72; C08G18/80; C08G18/8061; C08G18/8083; C08G18/809
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
61 words
A primer composition comprising a product of the reaction between an organosilane compound of the following general formula (A) and a phenyl group-free organic diisocyanate compound: ##STR14## wherein R 1 represents a monovalent hydrocarbon residue containing 1 to 4 carbon atoms; R 2 represents a divalent hydrocarbon residue containing 1 to 4 carbon atoms; and n represents 0, 1 or 2.
Claim 2
Dependent Claim
61 words
A primer composition comprising a product of the reaction between an organosilane compound of the following general formula (A) and a phenyl group-free organic diisocyanate compound: ##STR14## wherein R 1 represents a monovalent hydrocarbon residue containing 1 to 4 carbon atoms; R 2 represents a divalent hydrocarbon residue containing 1 to 4 carbon atoms; and n represents 0, 1 or 2.
Claim 3
Dependent Claim
36 words
The primer composition of claim 1, wherein said R 1 in the general formula (A) is a group selected from a class consisting of methyl, ethyl, propyl, isopropyl, butyl, isobutyl, tertiary butyl, vinyl and propenyl groups.
Claim 4
Dependent Claim
31 words
The primer composition of claim 1, wherein said R 2 in the general formula (A) is a group selected from a class consisting of methylene, ethylene, propylene, butylene and isobutylene groups.
Claim 5
Dependent Claim
31 words
The primer composition of claim 2, wherein the R 2 in the general formula (A) is a group selected form a class consisting of methylene, ethylene, propylene, butylene and isobutylene groups.
Claim 6
Dependent Claim
27 words
The primer composition of claim 1, wherein said organic silane compound represented by the general formula (A) is a compound selected from the group consisting of ##STR15##
Claim 7
Dependent Claim
21 words
The primer composition of claim 1, wherein said organic diisocyanate compound is a compound selected from the group consisting of; ##STR16##
Claim 8
Dependent Claim
45 words
The primer composition of claim 1, wherein said organic silane compound and said organic diisocyanate compound are used in such amounts that a ratio of isocyanate group to mercapto group to be present in the reaction system may range from 1.2:1 to 3.0:1 by mole.
Claim 9
Dependent Claim
28 words
The primer composition of claim 6, wherein the organic silane compound represented by the general formula (A) is γ-mercaptopropyltrimethoxysilane, and said organic diisocyanate compound is a hexamethylenediisocyanate compound.
Claim 10
Dependent Claim
28 words
The primer composition of claim 7, wherein said organic silane compound represented by the general formula (A) is γ-mercaptopropyltrimethoxysilane, and said organic diisocyanate compound is a hexamethylenediisocyanate compound.
Claim 11
Independent Claim
115 words
A method of producing a primer composition, wherein the main component of said primer composition is produced by the reaction comprising processes of laying a phenyl group-free organic diisocyanate compound in a solvent, adding thereto an organic tin compound as a catalyst, and then adding dropwise a silane compound represented by the general formula (A) under a temperature of 50°-150° C. and, after the dropwise addition, stirring them for from 2 to 4 hours at a temperature of 50°-150° C.: ##STR17## wherein R 1 represents a monovalent hydrocarbon residue of 1 to 4 carbon atoms; R 2 represents a divalent hydrocarbon residue of 1 to 4 carbon atoms; and n represents 0, 1 or 2.
Claim 12
Independent Claim
115 words
A method of producing a primer composition, wherein the main component of said primer composition is produced by the reaction comprising processes of laying a phenyl group-free organic diisocyanate compound in a solvent, adding thereto an organic tin compound as a catalyst, and then adding dropwise a silane compound represented by the general formula (A) under a temperature of 50°-150° C. and, after the dropwise addition, stirring them for from 2 to 4 hours at a temperature of 50°-150° C.: ##STR17## wherein R 1 represents a monovalent hydrocarbon residue of 1 to 4 carbon atoms; R 2 represents a divalent hydrocarbon residue of 1 to 4 carbon atoms; and n represents 0, 1 or 2.
Claim 13
Dependent Claim
47 words
The primer composition producing method of claim 10, wherein said organic silane compound and said organic diisocyanate compound are used in such amounts that a ratio of isocyanate group to mercapto group to be present in the reaction system may range from 1.2:1 to 3.0:1 by mole.
Claim 14
Dependent Claim
30 words
The primer composition producing method of claim 10, wherein said solvent in which the organic diisocyanate compound is laid is selected from a class consisting of esters, ketones and hydrocarbons.
Claim 15
Dependent Claim
21 words
The primer composition producing method of claim 12, wherein said eaters include methyl acetate, ethyl acetate, isobutyl acetate and methoxyethyl acetate.
Claim 16
Dependent Claim
21 words
The primer composition producing method of claim 10, wherein said ketones include methyl ethyl ketone, methyl isobutyl ketone and diethyl ketone.
Claim 17
Dependent Claim
17 words
The primer composition producing method of claim 12, wherein said hydrocarbons include benzene, toluene, xylene and hexane.
Claim 18
Independent Claim
110 words
A method of producing a primer composition, which comprises diluting with a diluent the reaction product formed by laying a phenyl group-free organic diisocyanate compound in a solvent, adding thereto an organic tin compound as a catalyst, and then adding dropwise a silane compound represented by the general formula (A) under a temperature of 50°-150° C. and, after the dropwise addition, stirring them for from 2 to 4 hours at a temperature of 50°-150° C.: ##STR18## wherein R 1 represents a monovalent hydrocarbon residue containing 1 to 4 carbon atoms; R 2 represents a divalent hydrocarbon residue containing 1 to 4 carbon atoms; and n represents 0, 1 or 2.
Claim 19
Independent Claim
110 words
A method of producing a primer composition, which comprises diluting with a diluent the reaction product formed by laying a phenyl group-free organic diisocyanate compound in a solvent, adding thereto an organic tin compound as a catalyst, and then adding dropwise a silane compound represented by the general formula (A) under a temperature of 50°-150° C. and, after the dropwise addition, stirring them for from 2 to 4 hours at a temperature of 50°-150° C.: ##STR18## wherein R 1 represents a monovalent hydrocarbon residue containing 1 to 4 carbon atoms; R 2 represents a divalent hydrocarbon residue containing 1 to 4 carbon atoms; and n represents 0, 1 or 2.
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) | 1995-01-13 | 1995-07-15 | 1996-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-01-13 | 1999-07-15 | 2000-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-01-13 | 2003-07-15 | 2004-01-14 | $7700.00 | Window Closed / Lapsed |