US4273689A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Filled, two-part plastic-producing system
Assignee: Sandvik Rock Tools Inc
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Filing: 1979-07-30
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Granted: 1981-06-16
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Expires: 1999-07-30
Abstract
Abstract A filled, two-part plastic-producing system is described. This system is based on the use of unsaturated polyester resin and a benzoyl peroxide paste curing agent. By modification of either or both parts of the system, its utility is greatly enhanced. Further a cement composition useful in a filled two-part grout-producing system is described.
Inventors
- 👤 Robert W. Smearing
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:32
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/09; C08K5/098; C08K3/00; C08K3/01; C08K3/013; C08K5/0008; C08K5/0025; Y; Y10; Y10S; Y10S524/00; Y10S524/906
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
97 words
A filled two-part plastic-producing system comprising: (i) (a) unsaturated polyester resin which is at least 30% by weight fumarate polyester, and (b) vinyl monomer and (c) up to 30% by total weight of alcohol, said vinyl monomer present in an amount of from 5% to 20% in excess of that required for curing said resin; and (ii) a curing agent paste of benzoyl peroxide in a liquid carrier, said curing agent paste containing between 0.2% and 5% by total weight of stearate salt, at least one of components (i) and (ii) additionally containing an essentially inert filler.
Claim 2
Dependent Claim
97 words
A filled two-part plastic-producing system comprising: (i) (a) unsaturated polyester resin which is at least 30% by weight fumarate polyester, and (b) vinyl monomer and (c) up to 30% by total weight of alcohol, said vinyl monomer present in an amount of from 5% to 20% in excess of that required for curing said resin; and (ii) a curing agent paste of benzoyl peroxide in a liquid carrier, said curing agent paste containing between 0.2% and 5% by total weight of stearate salt, at least one of components (i) and (ii) additionally containing an essentially inert filler.
Claim 3
Dependent Claim
16 words
The system of claim 1, wherein the fumarate polyester comprises fumarate orthophthalate or diethylene glycol fumarate.
Claim 4
Dependent Claim
29 words
The system of claim 1, wherein the stearate salt is selected from the group consisting of sodium stearate, calcium stearate, zinc stearate and admixtures of any of the foregoing.
Claim 5
Dependent Claim
19 words
The system of claim 1, wherein the curing agent paste contains between 5% and 40% water by total weight.
Claim 6
Dependent Claim
20 words
The system of claim 1, wherein the curing agent paste contains between 10% and 30% mineral oil by total weight.
Claim 7
Dependent Claim
22 words
The system of claim 1, wherein the alcohol is selected from the group consisting of aliphatic alcohols, polyols, glycols and admixtures thereof.
Claim 8
Dependent Claim
22 words
The system of claim 1, wherein the vinyl monomer is selected from the group consisting of styrene, vinyl toluene and admixtures thereof.
Claim 9
Dependent Claim
11 words
The system of claim 7, wherein the vinyl monomer is styrene.
Claim 10
Dependent Claim
18 words
The system of claim 8, wherein component; additionally contains up to 15% by total weight of polyvinyl acetate.
Claim 11
Dependent Claim
59 words
In a filled, two-part plastic-producing system containing: (i) unsaturated polyester resin and vinyl monomer; and (ii) a curing agent paste of benzoyl peroxide in a liquid carrier; at least one of components (i) and (ii) additionally containing an essentially inert filler, the improvement wherein said curing agent paste contains between 0.2% and 5% by total weight of stearate salt.
Claim 12
Dependent Claim
59 words
In a filled, two-part plastic-producing system containing: (i) unsaturated polyester resin and vinyl monomer; and (ii) a curing agent paste of benzoyl peroxide in a liquid carrier; at least one of components (i) and (ii) additionally containing an essentially inert filler, the improvement wherein said curing agent paste contains between 0.2% and 5% by total weight of stearate salt.
Claim 13
Dependent Claim
29 words
The system of claim 10, wherein the stearate salt is selected from the group consisting of sodium stearate, calcium stearate, zinc stearate and admixtures of any of the foregoing.
Claim 14
Dependent Claim
19 words
The system of claim 10, wherein the curing agent paste contains between 6% and 40% water by total weight.
Claim 15
Dependent Claim
20 words
The system of claim 12, wherein the curing agent paste contains between 10% and 30% mineral oil by total weight.
Claim 16
Dependent Claim
79 words
In a filled, two-part plastic-producing system containing: (i) unsaturated polyester resin and vinyl monomer; and (ii) a curing agent paste of benzoyl peroxide in a liquid carrier; at least one of components (i) and (ii) additionally containing an essentially inert filler, the improvement wherein said system additionally contains up to 30% by total weight of alcohol and said vinyl monomer is present in an amount of from 5% to 20% in excess of that required for curing said resin.
Claim 17
Dependent Claim
79 words
In a filled, two-part plastic-producing system containing: (i) unsaturated polyester resin and vinyl monomer; and (ii) a curing agent paste of benzoyl peroxide in a liquid carrier; at least one of components (i) and (ii) additionally containing an essentially inert filler, the improvement wherein said system additionally contains up to 30% by total weight of alcohol and said vinyl monomer is present in an amount of from 5% to 20% in excess of that required for curing said resin.
Claim 18
Dependent Claim
22 words
The system of claim 14, wherein the alcohol is selected from the group consisting of aliphatic alcohols, polyols, glycols and admixtures thereof.
Claim 19
Dependent Claim
22 words
The system of claim 15 wherein said alcohol is present in an amount of from 15% to 30% of the total weight.
Claim 20
Dependent Claim
11 words
The system of claim 15, wherein the vinyl monomer is styrene.
Claim 21
Dependent Claim
57 words
In a filled, two-part plastic-producing system containing: (i) unsaturated polyester resin and vinyl monomer; and (ii) a curing agent paste of benzoyl peroxide in a liquid carrier; at least one of components (i) and (ii) additionally containing an essentially inert filler, the improvement wherein said unsaturated polyester resin is at least 30% by weight fumarate orthophthalate polyester.
Claim 22
Dependent Claim
57 words
In a filled, two-part plastic-producing system containing: (i) unsaturated polyester resin and vinyl monomer; and (ii) a curing agent paste of benzoyl peroxide in a liquid carrier; at least one of components (i) and (ii) additionally containing an essentially inert filler, the improvement wherein said unsaturated polyester resin is at least 30% by weight fumarate orthophthalate polyester.
Claim 23
Dependent Claim
22 words
The system of claim 18, wherein the vinyl monomer is selected from the group consisting of styrene, vinyl toluene and admixtures thereof.
Claim 24
Dependent Claim
20 words
The system of claim 19, wherein the first part additionally contains up to 30% by total weight of polyvinyl acetate.
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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) | 1984-06-15 | 1984-12-15 | 1985-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-06-15 | 1988-12-15 | 1989-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-06-15 | 1992-12-15 | 1993-06-16 | $7700.00 | Window Closed / Lapsed |