US4439576A
Expired / Lapsed
US
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Modified polyurethane liquid polymer compositions
Assignee: Olin Corp
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Filing: 1981-09-29
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Granted: 1984-03-27
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Expires: 2001-09-29
Abstract
Abstract A novel, heat curable, liquid polymer composition is disclosed which comprises a modified polyurethane oligomer containing terminal ethylenic unsaturation, a free radical generating catalyst, and at least one additional component selected from a reinforcing agent and a filler. The cured composition demonstrates desirable impact properties and is particularly useful in automotive body constructions.
Inventors
- 👤 James M. O'Connor
- 👤 Donald L. Lickei
- 👤 Michael L. Rosin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:57
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/67; C08G18/671; C08F; C08F299/00; C08F299/02; C08F299/06; C08F299/065; Y; Y10; Y10S; Y10S525/00; Y10S525/92
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
138 words
A polyurethane liquid polymer composition comprising a polyurethane oligomer, a heat activated free radical generating catalyst and at least one additional component selected from the group consisting of a reinforcing agent and a filler, said polyurethane oligomer having an equivalent ratio of NCO to OH from about 0.8/1 to about 2/1 and being prepared by reacting (a) an organic polyisocyanate; (b) a polyether polyol having an average equivalent weight of about 75 to about 500 and an average functionality of at least about 3; and (c) an isocyanate reactive group-containing unsaturated monomer selected from the group consisting of hydroxyethyl acrylate, hydroxypropyl acrylate, hydroxyethyl methacrylate, hydroxyethyl acrylamide, hydroxypropyl acrylamide, and mixtures thereof; wherein there is employed an equivalent ratio of said isocyanate reactive group-containing unsaturated monomer to said polyether polyol in the range from about 0.6/1 to about 25/1.
Claim 2
Dependent Claim
138 words
A polyurethane liquid polymer composition comprising a polyurethane oligomer, a heat activated free radical generating catalyst and at least one additional component selected from the group consisting of a reinforcing agent and a filler, said polyurethane oligomer having an equivalent ratio of NCO to OH from about 0.8/1 to about 2/1 and being prepared by reacting (a) an organic polyisocyanate; (b) a polyether polyol having an average equivalent weight of about 75 to about 500 and an average functionality of at least about 3; and (c) an isocyanate reactive group-containing unsaturated monomer selected from the group consisting of hydroxyethyl acrylate, hydroxypropyl acrylate, hydroxyethyl methacrylate, hydroxyethyl acrylamide, hydroxypropyl acrylamide, and mixtures thereof; wherein there is employed an equivalent ratio of said isocyanate reactive group-containing unsaturated monomer to said polyether polyol in the range from about 0.6/1 to about 25/1.
Claim 3
Dependent Claim
15 words
The composition of claim 1, including a copolymerizable solvent in said polyurethane liquid polymer composition.
Claim 4
Dependent Claim
11 words
The composition of claim 2, wherein said copolymerizable solvent is styrene.
Claim 5
Dependent Claim
23 words
The composition of claim 1, wherein said polyurethane oligomer has an equivalent ratio of NCO to OH from about 1/1 to about 1.2/1.
Claim 6
Dependent Claim
30 words
The composition of claim 4, wherein said equivalent ratio of said isocyanate reactive group-containing unsaturated monomer to said polyether polyol is in the range from about 0.8/1 to about 10/1.
Claim 7
Dependent Claim
25 words
The composition of claim 1, wherein said unsaturated monomer is selected from the group consisting of hydroxyethyl acrylate, hydroxypropyl acrylate, hydroxyethyl methacrylate, and mixtures thereof.
Claim 8
Dependent Claim
17 words
The composition of claim 1, wherein said heat activated free radical generating catalyst is a peroxide catalyst.
Claim 9
Dependent Claim
23 words
The composition of claim 7, wherein said peroxide catalyst is selected from the group consisting of t-butyl perbenzoate, t-butyl peroctoate, and mixtures thereof.
Claim 10
Dependent Claim
91 words
The composition of claim 1, wherein said polyether polyol has an average equivalent weight of about 100 to about 200 and an average functionality of about 4 to about 6 and is prepared by reacting a polyhydric initiator selected from the group consisting of a mixture of sucrose and an aliphatic triol, a mixture of dextrose and an aliphatic triol, and a mixture of a methyl glucoside and an aliphatic triol with an alkylene oxide selected from the group consisting of propylene oxide and mixtures of propylene oxide and ethylene oxide.
Claim 11
Dependent Claim
15 words
The composition of claim 1, wherein said polyurethane oligomer further comprises a chain extending agent.
Claim 12
Dependent Claim
43 words
The composition of claim 10, wherein said chain extending agent is selected from the group consisting of tripropylene glycol, a polyol having an average equivalent weight ranging from about 200 to about 4,000 and an average functionality of about 2, and mixtures thereof.
Claim 13
Dependent Claim
19 words
The composition of claim 1, wherein said polyurethane oligomer is prepared by employing toluene diisocyanate as said organic polyisocyanate.
Claim 14
Dependent Claim
211 words
The composition of claim 1, comprising a peroxide catalyst, about 60 to about 130 parts by weight of a reinforcing agent per 100 parts by weight of said polyurethane oligomer, about 100 to about 220 parts by weight of a filler per 100 parts by weight of said polyurethane oligomer, and wherein said polyurethane oligomer has an equivalent ratio of NCO to OH from about 1/1 to about 1.2/1 and is prepared by reacting (a) toluene diisocyanate; (b) a polyether polyol having an average equivalent weight of about 100 to about 200 and an average functionality of about 4 to about 6 and prepared by reacting a polyhydric initiator selected from the group consisting of a mixture of sucrose and an aliphatic triol, a mixture of dextrose and an aliphatic triol, and a mixture of a methyl glucoside and an aliphatic triol with an alkylene oxide selected from the group consisting of propylene oxide and mixtures of propylene oxide and ethylene oxide; and (c) an isocyanate reactive group-containing unsaturated monomer selected from the group consisting of hydroxyethyl acrylate, hydroxypropyl acrylate, hydroxyethyl methacrylate, and mixtures thereof; and wherein said equivalent ratio of said isocyanate reactive group-containing unsaturated monomer to said polyether polyol is in the range from about 0.8/1 to about 10/1.
Claim 15
Dependent Claim
15 words
The composition of claim 13, including a copolymerizable solvent in said polyurethane liquid polymer composition.
Claim 16
Dependent Claim
11 words
The composition of claim 14, wherein said copolymerizable solvent is styrene.
Claim 17
Dependent Claim
15 words
The composition of claim 15, wherein said polyurethane oligomer further comprises a chain extending agent.
Claim 18
Dependent Claim
43 words
The composition of claim 16, wherein said chain extending agent is selected from the group consisting of tripropylene glycol, a polyol having an average equivalent weight ranging from about 200 to about 4,000 and an average functionality of about 2, and mixtures thereof.
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) | 1987-03-27 | 1987-09-26 | 1988-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-03-27 | 1991-09-26 | 1992-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-03-27 | 1995-09-26 | 1996-03-27 | $7700.00 | Window Closed / Lapsed |