US4585850A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flakeglass with sizing, amino, chloro, isocyanate agents coated directly onto the glass in RRIM elastomers
Assignee: Huntsman Corp
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Filing: 1984-08-30
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Granted: 1986-04-29
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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, and flaked glass treated with an amino, chloro, and/or isocyanate silane coupling agent. 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
2026-11-06 11:03
CPC Classifications
C; C08; C08K; C08K9/00; C08K9/04; C08K9/06; Y; Y10; Y10S; Y10S264/00; Y10S264/83
Claims Analysis
Total Claims: 19
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, flaked glass pretreated with amino silane coupling agent, 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, flaked glass pretreated with amino silane coupling agent, and an aromatic polyisocyanate.
Claim 3
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 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
59 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, flaked glass pretreated with amino silane coupling agent and a polyisocyanate.
Claim 7
Dependent Claim
59 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, flaked glass pretreated with amino silane coupling agent and a polyisocyanate.
Claim 8
Independent Claim
54 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, flaked glass pretreated with an amino silane coupling agent, and an aromatic polyisocyanate.
Claim 9
Independent Claim
54 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, flaked glass pretreated with an amino silane coupling agent, and an aromatic polyisocyanate.
Claim 10
Dependent Claim
20 words
A method as in claim 6 wherein the amine terminated polyethers have a functionality ranging from about 2 to 3.
Claim 11
Dependent Claim
13 words
A method as in claim 6 wherein the chain extender is diethyltoluene diamine.
Claim 12
Dependent Claim
12 words
A method as in claim 6 wherein the polyisocyanate is a quasi-prepolymer.
Claim 13
Independent Claim
66 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, flaked glass pretreated with an amino silane coupling agent, and an aromatic polyisocyanate.
Claim 14
Independent Claim
66 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, flaked glass pretreated with an amino silane coupling agent, and an aromatic polyisocyanate.
Claim 15
Dependent Claim
13 words
A method as in claim 10 wherein the chain extender is diethyltoluene diamine.
Claim 16
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 5000 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, flaked glass pretreated with chloro silane coupling agent, and an aromatic polyisocyanate.
Claim 17
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 5000 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, flaked glass pretreated with chloro silane coupling agent, and an aromatic polyisocyanate.
Claim 18
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, flaked glass pretreated with isocyanate silane coupling agent, 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, flaked glass pretreated with isocyanate silane coupling agent, 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) | 1989-04-28 | 1989-10-28 | 1990-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-04-28 | 1993-10-28 | 1994-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-04-28 | 1997-10-28 | 1998-04-29 | $7700.00 | Window Closed / Lapsed |