US4474900A
Expired / Lapsed
US
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Reaction injection molded elastomers
Assignee: Huntsman Corp
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Filing: 1983-06-08
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Granted: 1984-10-02
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Expires: 2003-06-08
Abstract
Abstract The 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 and an epoxy modified 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 05:49
CPC Classifications
C; C08; C08K; C08K9/00; C08K9/04; 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; C08K5/04; C08K5/15; C08K5/54; C08K9/06; C08G2120/00
Claims Analysis
Total Claims: 35
Claim 1
Independent Claim
48 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 modified filler material and an aromatic polyisocyanate.
Claim 2
Dependent Claim
48 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 modified filler material and an aromatic polyisocyanate.
Claim 3
Dependent Claim
20 words
An elastomer as in claim 1 wherein the amine terminated polyethers have an average molecular weight of at least 2,500.
Claim 4
Dependent Claim
15 words
An elastomer as in claim 1 wherein the epoxy modified filler material is glass based.
Claim 5
Dependent Claim
20 words
An elastomer as in claim 1 wherein the amine terminated polyethers have a functionality ranging from about 2 to 3.
Claim 6
Dependent Claim
24 words
An elastomer as in claim 1 wherein the amine terminated polyether is an aminated polyoxypropylene triol having an average molecular weight of about 5,000.
Claim 7
Dependent Claim
13 words
An elastomer as in claim 1 wherein the chain extender is diethyltoluene diamine.
Claim 8
Dependent Claim
12 words
An elastomer as in claim 1 wherein the polyisocyanate is a quasi-prepolymer.
Claim 9
Dependent Claim
57 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 modified filler material and an aromatic polyisocyanate.
Claim 10
Dependent Claim
57 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 modified filler material and an aromatic polyisocyanate.
Claim 11
Dependent Claim
13 words
An elastomer as in claim 8 wherein the chain extender is diethyltoluene diamine.
Claim 12
Dependent Claim
15 words
An elastomer as in claim 8 wherein the epoxy modified filler material is glass based.
Claim 13
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 14
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 15
Dependent Claim
13 words
An elastomer as in claim 11 wherein the chain extender is diethyltoluene diamine.
Claim 16
Dependent Claim
15 words
An elastomer as in claim 11 wherein the epoxy modified filler material is glass based.
Claim 17
Independent Claim
50 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 modified filler material and an aromatic polyisocyanate.
Claim 18
Independent Claim
50 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 modified filler material and an aromatic polyisocyanate.
Claim 19
Dependent Claim
20 words
A method as in claim 14 wherein the amine terminated polyethers have an average molecular weight of at least 2,500.
Claim 20
Dependent Claim
15 words
A method as in claim 15 wherein the epoxy modified filler material is glass based.
Claim 21
Dependent Claim
20 words
A method as in claim 14 wherein the amine terminated polyethers have a functionality ranging from about 2 to 3.
Claim 22
Dependent Claim
24 words
A method as in claim 14 wherein the amine terminated polyether is an aminated polyoxypropylene triol having an average molecular weight of about 5,000.
Claim 23
Dependent Claim
13 words
A method as in claim 14 wherein the chain extender is diethyltoluene diamine.
Claim 24
Dependent Claim
12 words
A method as in claim 14 wherein the polyisocyanate is a quasi-prepolymer.
Claim 25
Independent Claim
60 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 modified filler material and an aromatic polyisocyanate.
Claim 26
Independent Claim
60 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 modified filler material and an aromatic polyisocyanate.
Claim 27
Dependent Claim
13 words
A method as in claim 21 wherein the chain extender is diethyltoluene diamine.
Claim 28
Independent Claim
62 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 modified filler material and an aromatic polyisocyanate.
Claim 29
Independent Claim
62 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 modified filler material and an aromatic polyisocyanate.
Claim 30
Dependent Claim
13 words
A method as in claim 23 wherein the chain extender is diethyltoluene diamine.
Claim 31
Dependent Claim
15 words
A method as in claim 23 wherein the epoxy modified filler material is glass based.
Claim 32
Dependent Claim
35 words
A reaction injection molded elastomer made by reacting in a closed mold a polyether polyol having an equivalent weight of at least 500, a chain extender, an epoxy modified filler material and an aromatic polyisocyanate.
Claim 33
Dependent Claim
35 words
A reaction injection molded elastomer made by reacting in a closed mold a polyether polyol having an equivalent weight of at least 500, a chain extender, an epoxy modified filler material and an aromatic polyisocyanate.
Claim 34
Independent Claim
38 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, a chain extender, an epoxy modified filler material and an aromatic polyisocyanate.
Claim 35
Independent Claim
38 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, a chain extender, an epoxy modified filler material and an aromatic polyisocyanate.
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) | 1987-10-02 | 1988-04-02 | 1988-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-10-02 | 1992-04-02 | 1992-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-10-02 | 1996-04-02 | 1996-10-02 | $7700.00 | Window Closed / Lapsed |