Patent US4737538A successfully refreshed from Google Patents.
US4737538A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymer concrete compositions
Assignee: Kraton Polymers US LLC
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Filing: 1985-09-30
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Granted: 1988-04-12
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Expires: 2005-09-30
Abstract
Abstract The invention relates to a room temperature atmosphere pressure polymer concrete moldable composition comprising a thermosetting resin, vinyl monomer, catalyst, filler and a particular rubber component.
Inventors
- 👤 Walter M. Halper
- 👤 Carl L. Willis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:51
CPC Classifications
C; C04; C04B; C04B26/00; C04B26/02; C04B26/10; C04B26/04
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
115 words
A room temperature low pressure curing moldable polymer concrete composition having improved mechanical properties and dimentional stability when molded, said composition comprising: (a) an acetylene terminated polyamide; (b) an ethylenically unsaturated monomer; (c) a filler; (d) a combination of a low temperature free radical initiator and a low temperature promoter which will cure at between 0° C. and 100° C.; (e) a styrene-butadiene block copolymer having styrene block molecular weights of between 1,000 and 100,000, butadiene block molecular weights between 30,000 and 100,000 with the butadiene having a microstructure of between about 10 to 90 mole percent 1,2-vinyl, between about 5 and 40 mole percent 1,4-cis and between about 5 and 50 mole percent 1,4-trans.
Claim 2
Dependent Claim
115 words
A room temperature low pressure curing moldable polymer concrete composition having improved mechanical properties and dimentional stability when molded, said composition comprising: (a) an acetylene terminated polyamide; (b) an ethylenically unsaturated monomer; (c) a filler; (d) a combination of a low temperature free radical initiator and a low temperature promoter which will cure at between 0° C. and 100° C.; (e) a styrene-butadiene block copolymer having styrene block molecular weights of between 1,000 and 100,000, butadiene block molecular weights between 30,000 and 100,000 with the butadiene having a microstructure of between about 10 to 90 mole percent 1,2-vinyl, between about 5 and 40 mole percent 1,4-cis and between about 5 and 50 mole percent 1,4-trans.
Claim 3
Dependent Claim
11 words
The composition of claim 1 wherein said unsaturated monomer is styrene.
Claim 4
Dependent Claim
10 words
The composition of claim 1 wherein said filler is gravel.
Claim 5
Dependent Claim
15 words
The composition of claim 1 wherein said filler is a mixture of sand and gravel.
Claim 6
Dependent Claim
17 words
The composition of claim 1 wherein the filler is present at between 40% and 96% by weight.
Claim 7
Dependent Claim
17 words
The composition of claim 1 wherein the filler is present at between 60% and 90% by weight.
Claim 8
Dependent Claim
12 words
The composition of claim 1 wherein said initiator is an organic peroxide.
Claim 9
Dependent Claim
13 words
The composition of claim 1 wherein the initiator is methyl ethyl ketone peroxide.
Claim 10
Dependent Claim
11 words
The composition of claim 1 wherein the promotor is cobalt naphthate.
Claim 11
Dependent Claim
16 words
The composition of claim 1 wherein the initiator-promoter combination cures at between 10° and 60° C.
Claim 12
Dependent Claim
16 words
The composition of claim 1 wherein the initiator-promoter combination cures at between 10° and 40° C.
Claim 13
Dependent Claim
47 words
The composition of claim 1 wherein the weight average molecular weight of each styrene block in said block copolymer is between about 8,000 and about 20,000 and the weight average molecular weight of each butadiene block in said block copolymer is between about 30,000 and about 100,000.
Claim 14
Dependent Claim
15 words
The composition of claim 1 wherein the block copolymer is a tapered styrene/butadiene block copolymer.
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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) | 1991-04-12 | 1991-10-12 | 1992-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-04-12 | 1995-10-12 | 1996-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-04-12 | 1999-10-12 | 2000-04-12 | $7700.00 | Window Closed / Lapsed |