GB1092963A - Improvements relating to the curing of unsaturated polyester resins - Google Patents
Improvements relating to the curing of unsaturated polyester resinsInfo
- Publication number
- GB1092963A GB1092963A GB5145765A GB5145765A GB1092963A GB 1092963 A GB1092963 A GB 1092963A GB 5145765 A GB5145765 A GB 5145765A GB 5145765 A GB5145765 A GB 5145765A GB 1092963 A GB1092963 A GB 1092963A
- Authority
- GB
- United Kingdom
- Prior art keywords
- peroxycyclopentane
- water
- present
- unsaturated polyester
- esters
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F283/00—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G
- C08F283/01—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G on to unsaturated polyesters
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Macromonomer-Based Addition Polymer (AREA)
Abstract
Unsaturated polyester resins are homopolymerized or copolymerized with an ethylenically unsaturated comonomer using as catalyst 3,5 - dimethyl - 3,5 - dihydroxy - 1,2 - peroxycyclopentane. The peroxycyclopentane is employed as a paste or liquid composition in an organic liquid selected from alkanols, glycols, ethers, ketones, esters, heterocyclic amides and heterocyclic alcohols. Mixtures of two or more of such liquids may be present and water is also preferably present. Conventional metal activators and inhibitors may be present. In the examples, an unsaturated polyester formed from maleic and phthalic anhydrides and propylene glycol is copolymerized with styrene, in the presence of hydroquinone, using (a) the peroxycyclopentane, water, N - methyl-2-pyrrolidinone and triethyl phosphate; (b) cobalt naphthenate plus (a); (c) the peroxycyclopentane, water and N-methyl-2-pyrrolidone; and (d) the peroxycyclopentane, water and "Cellosolve" (R.T.M.) acetate. In (c) and (d) glass fibre laminates are formed. Two component systems comprising (i) resin + promoter, and (ii) the peroxide catalyst system may be formed.ALSO:A stable solution of 3,5-dimethyl-3,5-dihydroxy - 1,2 - peroxycyclopentane is formed by using as solvent an organic liquid selected from alkanols, glycols including ether glycols, ethers, ketones, esters, heterocyclic amides and heterocyclic alcohols. Mixtures of two or more of such liquids may be used and water is preferably also present. Instead of a solution a paste may be formed by dispersing solid peroxycyclopentane in the organic liquid which is preferably a phthalate ester. The concentration of the peroxycyclopentane is preferably such that the formulation has an active oxygen content of from 1 to 6% by weight. Preferably at least part of the solvent is an N-alkyl-2-pyrrolidone in which the alkyl group contains 1 to 4 carbon atoms. Other preferred solutions are those in which at least part of the organic solvent is a propylene glycol or tetrahydrofurfuryl alcohol. Phosphate esters such as triethyl phosphate are preferably added to increase the burning resistance.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US41579964A | 1964-12-03 | 1964-12-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1092963A true GB1092963A (en) | 1967-11-29 |
Family
ID=23647235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5145765A Expired GB1092963A (en) | 1964-12-03 | 1965-12-03 | Improvements relating to the curing of unsaturated polyester resins |
Country Status (4)
| Country | Link |
|---|---|
| DE (1) | DE1569556C3 (en) |
| FR (1) | FR1459477A (en) |
| GB (1) | GB1092963A (en) |
| NL (1) | NL146179B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2153168A1 (en) * | 1970-11-02 | 1972-05-04 | Koninkl Ind Mij Noury U V | Pastes containing organic peroxides and processes for their preparation |
| WO1999057191A1 (en) * | 1998-05-01 | 1999-11-11 | Flowtite Technology As | Peroxide blend compositions and methods for curing polyester resins |
-
1965
- 1965-11-29 NL NL6515460A patent/NL146179B/en not_active IP Right Cessation
- 1965-11-30 FR FR40303A patent/FR1459477A/en not_active Expired
- 1965-11-30 DE DE1965W0040400 patent/DE1569556C3/en not_active Expired
- 1965-12-03 GB GB5145765A patent/GB1092963A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2153168A1 (en) * | 1970-11-02 | 1972-05-04 | Koninkl Ind Mij Noury U V | Pastes containing organic peroxides and processes for their preparation |
| FR2113460A5 (en) * | 1970-11-02 | 1972-06-23 | Koninkl Ind | |
| WO1999057191A1 (en) * | 1998-05-01 | 1999-11-11 | Flowtite Technology As | Peroxide blend compositions and methods for curing polyester resins |
Also Published As
| Publication number | Publication date |
|---|---|
| DE1569556A1 (en) | 1970-05-06 |
| NL146179B (en) | 1975-06-16 |
| DE1569556B2 (en) | 1973-03-08 |
| FR1459477A (en) | 1966-11-18 |
| DE1569556C3 (en) | 1979-11-22 |
| NL6515460A (en) | 1966-06-06 |
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