GB905711A - Improved compositions based on chlorine-containing polymers, cured products obtained therefrom and a process for the manufacture of such products - Google Patents
Improved compositions based on chlorine-containing polymers, cured products obtained therefrom and a process for the manufacture of such productsInfo
- Publication number
- GB905711A GB905711A GB3817358A GB3817358A GB905711A GB 905711 A GB905711 A GB 905711A GB 3817358 A GB3817358 A GB 3817358A GB 3817358 A GB3817358 A GB 3817358A GB 905711 A GB905711 A GB 905711A
- Authority
- GB
- United Kingdom
- Prior art keywords
- allyl
- chlorine
- methallyl
- polymerization
- room temperature
- 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
- C08F259/00—Macromolecular compounds obtained by polymerising monomers on to polymers of halogen containing monomers as defined in group C08F14/00
- C08F259/02—Macromolecular compounds obtained by polymerising monomers on to polymers of halogen containing monomers as defined in group C08F14/00 on to polymers containing chlorine
- C08F259/04—Macromolecular compounds obtained by polymerising monomers on to polymers of halogen containing monomers as defined in group C08F14/00 on to polymers containing chlorine on to polymers of vinyl chloride
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Graft Or Block Polymers (AREA)
Abstract
Chlorine-containing polymeric products are made by mixing a chlorine-containing polymer with an allyl or methallyl monomer that is non-volatile under conditions of use and has a plasticizing action on the polymer and curing the mixture by means of heat-treatment in the presence of a free-radical polymerization catalyst of a defined type (see below), the product being a graft copolymer and, when an allyl or methallyl monomer having a functionality greater than 2 is used, being also cross-linked. The free-radical catalysts used are those which, at a concentration of 0,01% by weight, will not accelerate the initial rate of polymerization of pure styrene at 120 DEG C. by more than 50%, but are effective as free-radical catalysts for styrene at some temperature within the range of 120 DEG to 250 DEG C., which will initiate the polymerization of allyl and methallyl compounds and are substantially non-volatile at room temperature. Specified catalysts are dicumyl peroxide and the diphenyl ethanes of Specification 864,675. Chlorine-containing polymers specified are polyvinyl chloride and vinyl-vinylidene chloride copolymers. Allyl and methallyl compounds specified are monoallylmono-octyl sebacate, diallyl phthalate, diallyl adipate, diallyl maleate, triallyl trimellitate, triallyl cyanurate, allyl crotonate, allyl acrylate, allyl phosphate, allyl carbonate, triallyl citrate, methallyl ethers and esters and low molecular weight polyesters containing allyl and maleic groups. Also present during polymerization may be plasticizers, e.g. esters of phthalic, adipic, sebacic, glycollic and phosphoric acids, stabilizers, e.g. dibutyl tin bis (monobutyl maleate), dibutyl tin dilaurate and dibutyl tin maleate, and pigments and fillers, e.g. carbon black and glass fibre. If desired the monomer-polymer mix may be given a partial cure prior to the heat-treatment either by storing the mix at room temperature or by exposing it to ultra-violet light in the presence of a photocatalyst such as p-chlorobenzophenone. In a modification of the process the heat-treatment may be dispensed with altogether and curing effected by storage at room temperature for several days.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3817358A GB905711A (en) | 1958-11-26 | 1958-11-26 | Improved compositions based on chlorine-containing polymers, cured products obtained therefrom and a process for the manufacture of such products |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3817358A GB905711A (en) | 1958-11-26 | 1958-11-26 | Improved compositions based on chlorine-containing polymers, cured products obtained therefrom and a process for the manufacture of such products |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB905711A true GB905711A (en) | 1962-09-12 |
Family
ID=10401721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3817358A Expired GB905711A (en) | 1958-11-26 | 1958-11-26 | Improved compositions based on chlorine-containing polymers, cured products obtained therefrom and a process for the manufacture of such products |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB905711A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3351604A (en) * | 1965-07-01 | 1967-11-07 | Gen Electric | Compositions of vinyl halide resins, triallyl cyanurate, and trioctyl trimellitates and cured products therefrom |
-
1958
- 1958-11-26 GB GB3817358A patent/GB905711A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3351604A (en) * | 1965-07-01 | 1967-11-07 | Gen Electric | Compositions of vinyl halide resins, triallyl cyanurate, and trioctyl trimellitates and cured products therefrom |
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