US4582887A
Expired / Lapsed
US
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Reaction injection molded elastomers
Assignee: Huntsman Corp
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Filing: 1984-08-30
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Granted: 1986-04-15
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Expires: 2004-08-30
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, a chloro and/or isocyanate 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
- 👤 David R. McCoy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:50
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/65; C08G18/66; C08G18/6666; C08G18/40; C08G18/48; C08G18/50; C08G18/5021; C08G18/5024; C08K; C08K5/00; C08K5/54; C08K5/5406; C08G2120/00; Y; Y10; Y10S; Y10S264/00; Y10S264/83
Claims Analysis
Total Claims: 26
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, a chloro 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, a chloro 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
Independent Claim
53 words
A method for making a reaction injection molded elastomer comprising reacting in a closed mold amine terminated polyethers greater than 2,500 average molecular weight having greater than 50% of their active hydrogen in the form of amine hydrogens, a chain extender, a chloro silane coupling agent, untreated filler material and an aromatic polyisocyanate.
Claim 7
Independent Claim
53 words
A method for making a reaction injection molded elastomer comprising reacting in a closed mold amine terminated polyethers greater than 2,500 average molecular weight having greater than 50% of their active hydrogen in the form of amine hydrogens, a chain extender, a chloro silane coupling agent, untreated filler material and an aromatic polyisocyanate.
Claim 8
Dependent Claim
13 words
A method as in claim 5 wherein the filler material is glass based.
Claim 9
Dependent Claim
13 words
A method as in claim 5 wherein the chain extender is diethyltoluene diamine.
Claim 10
Dependent Claim
12 words
A method as in claim 5 wherein the polyisocyanate is a quasi-prepolymer.
Claim 11
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, a chloro silane coupling agent, untreated filler material and an aromatic polyisocynate.
Claim 12
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, a chloro silane coupling agent, untreated filler material and an aromatic polyisocynate.
Claim 13
Dependent Claim
13 words
A method as in claim 9 wherein the chain extender is diethyltoluene diamine.
Claim 14
Dependent Claim
13 words
A method as in claim 9 wherein the filler material is glass based.
Claim 15
Dependent Claim
38 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, a chloro silane coupling agent, untreated filler material and an aromatic polyisocyanate.
Claim 16
Dependent Claim
38 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, a chloro silane coupling agent, untreated filler material and an aromatic polyisocyanate.
Claim 17
Independent Claim
41 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, a chloro silane coupling agent, untreated filler material and an aromatic polyisocyanate.
Claim 18
Independent Claim
41 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, a chloro silane coupling agent, untreated filler material and an aromatic polyisocyanate.
Claim 19
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 isocyanate silane coupling agent, untreated filler material, and an aromatic polyisocyanate.
Claim 20
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 isocyanate silane coupling agent, untreated filler material, and an aromatic polyisocyanate.
Claim 21
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 isocyanate silane coupling agent, untreated filler material and an aromatic polyisocyanate.
Claim 22
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 isocyanate silane coupling agent, untreated filler material and an aromatic polyisocyanate.
Claim 23
Dependent Claim
38 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 isocyanate silane coupling agent, untreated filler material and an aromatic polyisocyanate.
Claim 24
Dependent Claim
38 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 isocyanate silane coupling agent, untreated filler material and an aromatic polyisocyanate.
Claim 25
Independent Claim
41 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 isocyanate silane coupling agent, untreated filler material and an aromatic polyisocyanate.
Claim 26
Independent Claim
41 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 isocyanate silane coupling agent, untreated filler material and an aromatic polyisocyanate.
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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) | 1989-04-14 | 1989-10-14 | 1990-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-04-14 | 1993-10-14 | 1994-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-04-14 | 1997-10-14 | 1998-04-15 | $7700.00 | Window Closed / Lapsed |