GB1014981A - Fire retardant compositions comprising methyl methacrylate polymers - Google Patents
Fire retardant compositions comprising methyl methacrylate polymersInfo
- Publication number
- GB1014981A GB1014981A GB3633263A GB3633263A GB1014981A GB 1014981 A GB1014981 A GB 1014981A GB 3633263 A GB3633263 A GB 3633263A GB 3633263 A GB3633263 A GB 3633263A GB 1014981 A GB1014981 A GB 1014981A
- Authority
- GB
- United Kingdom
- Prior art keywords
- chloroethyl
- methyl methacrylate
- phosphate
- copolymer
- fire
- 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
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/49—Phosphorus-containing compounds
- C08K5/51—Phosphorus bound to oxygen
- C08K5/52—Phosphorus bound to oxygen only
- C08K5/521—Esters of phosphoric acids, e.g. of H3PO4
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Fire retardant compositions comprise a homopolymer or copolymer of methyl methacrylate, said copolymer containing a major proportion by weight of polymerized methyl methacrylate, and from 3 to 25% by weight based on the weight of said homopolymer or copolymer of mono-(2-chloroethyl) phosphate and/or bis (2-chloroethyl) phosphate. Suitable co-monomers for the copolymer include acrylic acid, methacrylic acid, esters, particularly C1- 12 alkyl esters, of acrylic and methacrylic acid, styrene, substituted styrenes, e.g. halostyrenes, maleimide, N-substituted maleimides, e.g. N-aryl maleimides, acrylonitrile and mixtures thereof. The polymers used can be prepared by known bulk or solution polymerization methods. Other ingredients may optionally be included in the compositions, e.g. dyestuffs, U.V. absorbers, heat stabilizers, plasticizers, substances which render the composition opalescent, e.g. polystyrene, and known fire-retardant agents. In an example, fire-retardant polymethyl methacrylate sheets are prepared by adding a mixture of mono-(2-chloroethyl) phosphate and bis-(2-chloroethyl) phosphate together with azo-diisobutyronitrile to a partially polymerized methyl methacrylate syrup, and moulding the mixture at elevated temperature; comparison processes are also illustrated using mixtures of the corresponding ethyl, n-propyl, n-butyl and isopropyl acid phosphates instead of the chloroethyl acid phosphates.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3633263A GB1014981A (en) | 1963-09-16 | 1963-09-16 | Fire retardant compositions comprising methyl methacrylate polymers |
NL6410345A NL6410345A (en) | 1963-09-16 | 1964-09-04 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3633263A GB1014981A (en) | 1963-09-16 | 1963-09-16 | Fire retardant compositions comprising methyl methacrylate polymers |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1014981A true GB1014981A (en) | 1965-12-31 |
Family
ID=10387181
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3633263A Expired GB1014981A (en) | 1963-09-16 | 1963-09-16 | Fire retardant compositions comprising methyl methacrylate polymers |
Country Status (2)
Country | Link |
---|---|
GB (1) | GB1014981A (en) |
NL (1) | NL6410345A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3311832A1 (en) * | 1983-03-31 | 1984-10-04 | Röhm GmbH, 6100 Darmstadt | FLAME-RETARDANT POLYMETHYL METHACRYLATE MOLDING |
-
1963
- 1963-09-16 GB GB3633263A patent/GB1014981A/en not_active Expired
-
1964
- 1964-09-04 NL NL6410345A patent/NL6410345A/xx unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3311832A1 (en) * | 1983-03-31 | 1984-10-04 | Röhm GmbH, 6100 Darmstadt | FLAME-RETARDANT POLYMETHYL METHACRYLATE MOLDING |
Also Published As
Publication number | Publication date |
---|---|
NL6410345A (en) | 1965-03-17 |
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