Patent US4741931A successfully refreshed from Google Patents.
US4741931A
Expired / Lapsed
US
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Titanate/organosilane compositions
Assignee: PPG Industries Ohio Inc
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Filing: 1986-09-22
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Granted: 1988-05-03
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Expires: 2006-09-22
Abstract
Abstract A titanate/organosilane copolymer is disclosed for use as a primer to promote adhesion between a rigid polymer substrate and an elastomeric interlayer or inorganic coating, or as a release agent to prevent such adhesion depending on the nature of the organic moiety of the organosilane.
Inventors
- 👤 Chia-Cheng Lin
- 👤 Thomas G. Rukavina
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:16
CPC Classifications
C; C08; C08G; C08G79/00; C08G77/00; C08G77/48; C08G77/58; C09; C09D; C09D4/00; Y; Y10; Y10T; Y10T428/00; Y10T428/28; Y10T428/2843; Y10T428/31504; Y10T428/31507; Y10T428/31511; Y10T428/31652; Y10T428/31663; Y10T428/31667
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
90 words
A method of making a primer for use in adhering coatings to polymeric substrates comprising the steps of: a. mixing alkoxyorganosilane compound and a titanium alkoxide capable of reacting with said alkoxyorganosilane together in a solvent to form a solution; b. applying said solution to a substrate surface; and c. evaporating the solvent to form on the substrate surface a film comprising a titanate/organosilane copolymer consisting essentially of the reaction product of said alkoxyorganosilane and titanium alkoxide, wherein the organic moiety of said alkoxyorganosilane promotes adhesion to said substrate surface.
Claim 2
Independent Claim
90 words
A method of making a primer for use in adhering coatings to polymeric substrates comprising the steps of: a. mixing alkoxyorganosilane compound and a titanium alkoxide capable of reacting with said alkoxyorganosilane together in a solvent to form a solution; b. applying said solution to a substrate surface; and c. evaporating the solvent to form on the substrate surface a film comprising a titanate/organosilane copolymer consisting essentially of the reaction product of said alkoxyorganosilane and titanium alkoxide, wherein the organic moiety of said alkoxyorganosilane promotes adhesion to said substrate surface.
Claim 3
Dependent Claim
11 words
A method according to claim 1, wherein said alkoxyorganosilane is methacryloxypropyltrimethoxysilane.
Claim 4
Independent Claim
109 words
A method of making a primer for use in adhering coatings to polymeric substrates comprising the steps of: a. mixing an alkoxyorganosilane compound with a titanium alkoxide capable of reacting with said alkylorganosilane together in a solvent to form a solution; b. applying said solution to a substrate surface; and c. evaporating the solvent to form on the substrate surface a film comprising a copolymer consisting essentially of the reaction product of said alkoxyorganosilane and titanium alkoxide, wherein the organic moiety of said alkoxyorganosilane promotes adhesion to said substrate surface and wherein said titanium alkoxide is selected from the group consisting of titanium (IV) butoxide and titanium (IV) isopropoxide.
Claim 5
Independent Claim
109 words
A method of making a primer for use in adhering coatings to polymeric substrates comprising the steps of: a. mixing an alkoxyorganosilane compound with a titanium alkoxide capable of reacting with said alkylorganosilane together in a solvent to form a solution; b. applying said solution to a substrate surface; and c. evaporating the solvent to form on the substrate surface a film comprising a copolymer consisting essentially of the reaction product of said alkoxyorganosilane and titanium alkoxide, wherein the organic moiety of said alkoxyorganosilane promotes adhesion to said substrate surface and wherein said titanium alkoxide is selected from the group consisting of titanium (IV) butoxide and titanium (IV) isopropoxide.
Claim 6
Dependent Claim
19 words
A method according to claim 2, wherein said alkoxyorganosilane and said titanium alkoxide are mixed in substantially equimolar amounts.
Claim 7
Dependent Claim
11 words
A method according to claim 2, wherein the solvent is isopropanol.
Claim 8
Dependent Claim
78 words
In a method of adhering a coating to a polymeric surface, the improvement which comprises the steps of: a. contacting one of the surface to be adhered with a solution comprising an alkoxyorganosilane and a titanium alkoxide; and b. evaporating solvent from said solution thereby forming on said surface a film consisting essentially of the copolymer reaction product of said alkoxyorganosilane and said titanium alkoxide, wherein the organic moiety of said alkoxyorganosilane promotes adhesion to said substrate surface.
Claim 9
Dependent Claim
78 words
In a method of adhering a coating to a polymeric surface, the improvement which comprises the steps of: a. contacting one of the surface to be adhered with a solution comprising an alkoxyorganosilane and a titanium alkoxide; and b. evaporating solvent from said solution thereby forming on said surface a film consisting essentially of the copolymer reaction product of said alkoxyorganosilane and said titanium alkoxide, wherein the organic moiety of said alkoxyorganosilane promotes adhesion to said substrate surface.
Claim 10
Dependent Claim
13 words
An improved method according to claim 6, wherein said alkoxyorganosilane compound is methacrylpropyltrimethoxysilane.
Claim 11
Dependent Claim
82 words
In a method of adhering coating to a polymeric surface, the improvement which comprises the steps of: a. contacting one of the surfaces to be adhered with a solution comprising an alkoxyorganosilane and a titanium alkoxide; and b. evaporating solvent from said solution thereby forming on said surface a film consisting essentially of the copolymer reaction product of said alkoxyorganosilane and said titanium alkoxide, wherein said titanium alkoxide is selected from the group consisting of titanium (IV) butoxide and titanium (IV) isopropoxide.
Claim 12
Dependent Claim
82 words
In a method of adhering coating to a polymeric surface, the improvement which comprises the steps of: a. contacting one of the surfaces to be adhered with a solution comprising an alkoxyorganosilane and a titanium alkoxide; and b. evaporating solvent from said solution thereby forming on said surface a film consisting essentially of the copolymer reaction product of said alkoxyorganosilane and said titanium alkoxide, wherein said titanium alkoxide is selected from the group consisting of titanium (IV) butoxide and titanium (IV) isopropoxide.
Claim 13
Dependent Claim
20 words
An improved method according to claim 6, wherein said alkoxyorganosilane and said titanium alkoxide are present in substantially equimolar amounts.
Claim 14
Dependent Claim
12 words
An improved method according to claim 6, wherein said solvent is isopropanol.
Claim 15
Dependent Claim
25 words
An improved method according to claim 2, wherein said titanium alkoxide is selected from the group consisting of titanium (IV) butoxide and titanium (IV) isopropoxide.
Claim 16
Dependent Claim
25 words
An improved method according to claim 6, wherein said titanium alkoxide is selected from the group consisting of titanium (IV) butoxide and titanium (IV) isopropoxide.
References Cited (Backward Citations)
US3794556A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1991-05-03 | 1991-11-02 | 1992-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-05-03 | 1995-11-02 | 1996-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-05-03 | 1999-11-02 | 2000-05-03 | $7700.00 | Window Closed / Lapsed |