US4607090A
Expired / Lapsed
US
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Reaction injection molded elastomers
Assignee: Texaco Inc
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Filing: 1985-08-08
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Granted: 1986-08-19
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Expires: 2005-08-08
Abstract
Abstract This invention relates to reaction injection molded elastomers derived from high molecular weight amine terminated polyethers and/or high molecular weight polyols, a chain extender, a polyisocyanate, an epoxy silane coupling agent, and untreated filler material. The reaction injection molded (RIM) elastomers of this invention are useful, for example, as automobile body parts.
Inventors
- 👤 Richard J. G. Dominguez
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 03:53
CPC Classifications
C; C08; C08K; C08K3/00; C08K3/40; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/48; C08G18/50; C08G18/5021; C08G18/5024; C08G18/65; C08G18/66; C08G18/6666; C08G18/667; C08G18/6681; C08G18/6685; C08K5/00; C08K5/54; C08K5/541; C08K5/5435; Y; Y10; Y10S; Y10S264/00; Y10S264/83
Claims Analysis
Total Claims: 33
Claim 1
Independent Claim
51 words
A reaction injection molded elastomer made by reacting in a closed mold amine terminated polyethers of greater than 1,500 average molecular weight having greater than 50% of their active hydrogen in the form of amine hydrogens, a chain extender, an epoxy silane coupling agent, untreated filler material, and an aromatic polyisocyanate.
Claim 2
Dependent Claim
51 words
A reaction injection molded elastomer made by reacting in a closed mold amine terminated polyethers of greater than 1,500 average molecular weight having greater than 50% of their active hydrogen in the form of amine hydrogens, a chain extender, an epoxy silane coupling agent, untreated filler material, and an aromatic polyisocyanate.
Claim 3
Dependent Claim
13 words
An elastomer as in claim 1 wherein the filler material is glass based.
Claim 4
Dependent Claim
13 words
An elastomer as in claim 1 wherein the chain extender is diethyltoluene diamine.
Claim 5
Dependent Claim
12 words
An elastomer as in claim 1 wherein the polyisocyanate is a quasi-prepolymer.
Claim 6
Dependent Claim
60 words
A reaction injection molded elastomer made by reacting in a closed mold amine terminated polyethers of at least 2,500 molecular weight and having a functionality of from about 2 to 3 having greater than 50% of their active hydrogen in the form of amine hydrogens, a chain extender, an epoxy silane coupling agent, untreated filler material, and an aromatic polyisocyanate.
Claim 7
Dependent Claim
60 words
A reaction injection molded elastomer made by reacting in a closed mold amine terminated polyethers of at least 2,500 molecular weight and having a functionality of from about 2 to 3 having greater than 50% of their active hydrogen in the form of amine hydrogens, a chain extender, an epoxy silane coupling agent, untreated filler material, and an aromatic polyisocyanate.
Claim 8
Dependent Claim
13 words
An elastomer as in claim 5 wherein the chain extender is diethyltoluene diamine.
Claim 9
Dependent Claim
13 words
An elastomer as in claim 5 wherein the filler material is glass based.
Claim 10
Dependent Claim
56 words
A reaction injection molded elastomer made by reacting in a closed mold amine terminated polyethers of at least 5,000 molecular weight and having a functionality of from about 2 to 3 having greater than 50% of their active hydrogens in the form of amine hydrogens, a chain extender, an epoxy modified filler material and a polyisocyanate.
Claim 11
Dependent Claim
56 words
A reaction injection molded elastomer made by reacting in a closed mold amine terminated polyethers of at least 5,000 molecular weight and having a functionality of from about 2 to 3 having greater than 50% of their active hydrogens in the form of amine hydrogens, a chain extender, an epoxy modified filler material and a polyisocyanate.
Claim 12
Dependent Claim
13 words
An elastomer as in claim 8 wherein the chain extender is diethyltoluene diamine.
Claim 13
Dependent Claim
13 words
An elastomer as in claim 8 wherein the filler material is glass based.
Claim 14
Independent Claim
53 words
A method for making a reaction injection molded elastomer comprising reacting in a closed mold amine terminated polyethers greater than 1,500 average molecular weight having greater than 50% of their active hydrogen in the form of amine hydrogens, a chain extender, an epoxy silane coupling agent, untreated filler material and an aromatic polyisocyanate.
Claim 15
Independent Claim
53 words
A method for making a reaction injection molded elastomer comprising reacting in a closed mold amine terminated polyethers greater than 1,500 average molecular weight having greater than 50% of their active hydrogen in the form of amine hydrogens, a chain extender, an epoxy silane coupling agent, untreated filler material and an aromatic polyisocyanate.
Claim 16
Dependent Claim
13 words
A method as in claim 11 wherein the filler material is glass based.
Claim 17
Dependent Claim
13 words
A method as in claim 11 wherein the chain extender is diethyltoluene diamine.
Claim 18
Dependent Claim
12 words
A method as in claim 11 wherein the polyisocyanate is a quasi-prepolymer.
Claim 19
Independent Claim
63 words
A method for making a reaction injection molded elastomer comprising reacting in a closed mold amine terminated polyethers of at least 2,500 molecular weight and having a functionality of from about 2 to 3 having greater than 50% of their active hydrogen in the form of amine hydrogens, a chain extender, an epoxy silane coupling agent, untreated filler material and an aromatic polyisocyanate.
Claim 20
Independent Claim
63 words
A method for making a reaction injection molded elastomer comprising reacting in a closed mold amine terminated polyethers of at least 2,500 molecular weight and having a functionality of from about 2 to 3 having greater than 50% of their active hydrogen in the form of amine hydrogens, a chain extender, an epoxy silane coupling agent, untreated filler material and an aromatic polyisocyanate.
Claim 21
Dependent Claim
13 words
A method as in claim 15 wherein the chain extender is diethyltoluene diamine.
Claim 22
Independent Claim
65 words
A method for making a reaction injection molded elastomer comprising reacting in a closed mold amine terminated polyethers of at least 5,000 molecular weight and having a functionality of from about 2 to 3 having greater than 50% of their active hydrogen in the form of amine hydrogens, an amine terminated chain extender, an epoxy silane coupling agent, untreated filler material and an aromatic polyisocyanate.
Claim 23
Independent Claim
65 words
A method for making a reaction injection molded elastomer comprising reacting in a closed mold amine terminated polyethers of at least 5,000 molecular weight and having a functionality of from about 2 to 3 having greater than 50% of their active hydrogen in the form of amine hydrogens, an amine terminated chain extender, an epoxy silane coupling agent, untreated filler material and an aromatic polyisocyanate.
Claim 24
Dependent Claim
13 words
A method as in claim 17 wherein the chain extender is diethyltoluene diamine.
Claim 25
Dependent Claim
13 words
A method as in claim 17 wherein the filler material is glass based.
Claim 26
Dependent Claim
39 words
A reaction injection molded elastomer made by reacting in a closed mold a polyether polyol having an equivalent weight of at least 500, an amine chain extender, an epoxy silane coupling agent, untreated filler material and an aromatic polyisocyanate.
Claim 27
Dependent Claim
39 words
A reaction injection molded elastomer made by reacting in a closed mold a polyether polyol having an equivalent weight of at least 500, an amine chain extender, an epoxy silane coupling agent, untreated filler material and an aromatic polyisocyanate.
Claim 28
Dependent Claim
14 words
An elastomer as in claim 20 wherein the amine chain extender is a diamine.
Claim 29
Dependent Claim
14 words
An elastomer as in claim 20 wherein the amine chain extender is diethyltoluene diamine.
Claim 30
Independent Claim
42 words
A method for making a reaction injection molded elastomer comprising reacting in a closed mold a polyether polyol having an equivalent weight of at least 500, an amine chain extender, an epoxy silane coupling agent, untreated filler material and an aromatic polyisocyanate.
Claim 31
Independent Claim
42 words
A method for making a reaction injection molded elastomer comprising reacting in a closed mold a polyether polyol having an equivalent weight of at least 500, an amine chain extender, an epoxy silane coupling agent, untreated filler material and an aromatic polyisocyanate.
Claim 32
Dependent Claim
14 words
A method as in claim 23 wherein the amine chain extender is a diamine.
Claim 33
Dependent Claim
14 words
A method as in claim 23 wherein the amine chain extender is diethyltoluene diamine.
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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) | 1989-08-18 | 1990-02-17 | 1990-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-08-18 | 1994-02-17 | 1994-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-08-18 | 1998-02-17 | 1998-08-19 | $7700.00 | Window Closed / Lapsed |