US4115336A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stable aqueous polyester-monomer emulsions
Assignee: Syncrete SA
•
Filing: 1977-02-28
•
Granted: 1978-09-19
•
Expires: 1997-02-28
Abstract
Abstract An emulsion formed by mixing water with a mixture consisting essentially of an unsaturated polyester resin and an unsaturated monomer, wherein said emulsion is so stable that demulsification does not occur when a setting agent of a kind which sets by hydration thereof is added thereto.
Inventors
- 👤 Pierre Albert Crouzet
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:36
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/66; C04; C04B; C04B24/00; C04B24/24; C04B24/28; C04B24/283; C08G63/68; C08K; C08K3/00
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
133 words
A water in resin emulsion formed by mixing a. water with b. a mixture consisting essentially of i. an unsaturated polyester resin having a molecular weight from about 3,100 to 3,600 formed by a condensation polymerization reaction, which is allowed to proceed until the polyester has an acid number of no more than about 25, between polyhydric and polycarboxylic compounds or derivatives thereof, said polyhydric compounds being present in an excess over stoichiometric requirements, at least one of said compounds being unsaturated, the remainder being saturated; and ii. an unsaturated monomer, the mixture b) containing no more than about 30% by weight of the unsaturated monomer ii), wherein said emulsion is so stable that demulsification does not occur when a setting agent of a kind which sets by hydration thereof is added thereto.
Claim 2
Dependent Claim
133 words
A water in resin emulsion formed by mixing a. water with b. a mixture consisting essentially of i. an unsaturated polyester resin having a molecular weight from about 3,100 to 3,600 formed by a condensation polymerization reaction, which is allowed to proceed until the polyester has an acid number of no more than about 25, between polyhydric and polycarboxylic compounds or derivatives thereof, said polyhydric compounds being present in an excess over stoichiometric requirements, at least one of said compounds being unsaturated, the remainder being saturated; and ii. an unsaturated monomer, the mixture b) containing no more than about 30% by weight of the unsaturated monomer ii), wherein said emulsion is so stable that demulsification does not occur when a setting agent of a kind which sets by hydration thereof is added thereto.
Claim 3
Dependent Claim
25 words
An emulsion according to claim 1, wherein the molar ratio of unsaturated to saturated compounds in the resin i) is from about 0.8 to 1.75.
Claim 4
Dependent Claim
23 words
An emulsion according to claim 1, which contains from 35% to 60% by weight of water based on the weight of the emulsion.
Claim 5
Dependent Claim
23 words
An emulsion according to claim 1, wherein the molar ratio of unsaturated to saturated compounds lies in the range from 1.35 to 1.4.
Claim 6
Dependent Claim
26 words
An emulsion according to claim 1, wherein the polycarboxylic compounds are selected from the group consisting of tetrabromophthalic anhydride, maleic anhydride, fumaric acid or phthalic anhydride.
Claim 7
Dependent Claim
25 words
An emulsion according to claim 1, wherein the polyhydric compounds are selected from the group consisting of ethylene glycol, trimethylpentanediol, polyethylene glycol and neopentyl glycol.
Claim 8
Dependent Claim
37 words
An emulsion according to claim 1, wherein the polyhydric compounds are mixed with pentaerythritol prior to the condensation polymerization reaction with the polycarboxylic acid compounds and 2,2-bis(methylallylether)-1-butanol is added toward the end of the condensation polymerization reaction.
Claim 9
Dependent Claim
24 words
An emulsion according to claim 1, wherein said polyhydric compounds are present in an excess of 2 to 5 mole percent over stoichiometric requirements.
Claim 10
Dependent Claim
18 words
An emulsion according to claim 1, wherein at least one of said compounds has a high molecular weight.
Claim 11
Dependent Claim
14 words
An emulsion according to claim 1, wherein the unsaturated monomer is a vinyl monomer.
Claim 12
Dependent Claim
16 words
An emulsion according to claim 1, wherein the unsaturated monomer is an acrylate or methacrylate monomer.
Claim 13
Dependent Claim
26 words
An emulsion according to claim 1, wherein the unsaturated monomer is selected from the group consisting of styrene, methyl methacrylate, triallyl cyanurate, diallylphthalate and mixtures thereof.
Claim 14
Dependent Claim
29 words
An emulsion according to claim 1, wherein the mixture contains an addition polymerization promoter to promote a subsequent addition polymerization reaction between said unsaturated polyester and said unsaturated monomer.
Claim 15
Dependent Claim
12 words
An emulsion according to claim 13, wherein said promoter is cobalt octoate.
Claim 16
Dependent Claim
27 words
An emulsion according to claim 1, wherein the mixture contains an initiator capable of initiating an addition polymerization reaction between said unsaturated polyester and said unsaturated monomer.
References Cited (Backward Citations)
US3256219A
Cited
US3240736A
Cited
US3437619A
Cited
US3539441A
Cited
US3544344A
Cited
US3854267A
Cited
US3947398A
Cited
US3733285A
Cited
US3915919A
Cited
US3955992A
Cited
US3978018A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-09-18 | 1982-03-20 | 1982-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-09-18 | 1986-03-20 | 1986-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-09-18 | 1990-03-20 | 1990-09-19 | $7700.00 | Window Closed / Lapsed |