GB1413383A - Cross-linked copolymers and their production - Google Patents
Cross-linked copolymers and their productionInfo
- Publication number
- GB1413383A GB1413383A GB2360075A GB2360075A GB1413383A GB 1413383 A GB1413383 A GB 1413383A GB 2360075 A GB2360075 A GB 2360075A GB 2360075 A GB2360075 A GB 2360075A GB 1413383 A GB1413383 A GB 1413383A
- Authority
- GB
- United Kingdom
- Prior art keywords
- carbon atoms
- glycol dimethacrylate
- cross
- copolymerized
- residues
- 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
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/26—Esters containing oxygen in addition to the carboxy oxygen
-
- 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
- C08F222/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a carboxyl radical and containing at least one other carboxyl radical in the molecule; Salts, anhydrides, esters, amides, imides, or nitriles thereof
- C08F222/10—Esters
- C08F222/1006—Esters of polyhydric alcohols or polyhydric phenols
- C08F222/102—Esters of polyhydric alcohols or polyhydric phenols of dialcohols, e.g. ethylene glycol di(meth)acrylate or 1,4-butanediol dimethacrylate
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
1413383 Copolymers BAYER AG 29 March 1973 23600/75 Divided out of 1413381 Heading C3P A cross-linked copolymer comprising the following copolymerized residues (percentages being by weight of the cross-linked co-polymer): A: 0À1 to 50% of at least one α,#-olefinically unsaturated dicarboxylic acid anhydride having 4-9 carbon atoms; B: 99À9 to 50% of at least one di- and/or polyacrylate or methacrylate of a diol and/or a polyol, the said copolymer having a bulk volume of 1À4-30 ml./g. and a specific surface area of 0À1-500 m.<SP>2</SP>/g., and containing, after hydrolysis of the anhydride groups, 0À02 to 10 m.equiv. of acid per gram, is obtained by copolymerizing by precipitation or bead polymerization in a diluent inert to anhydride groups at 20-200‹ C. in the presence of a freeradical initiator, a mixture comprising 0À2 to 70 wt. per cent of component A and 99.9 to 30 wt. per cent of component B. Copolymerized residues A are preferably derived from at least one of maleic, itaconic, and citraconic anhydrides, and the polymerized residues B are preferably derived from di-acrylates and dimethacrylates of diols containing 2-4 carbon atoms, reaction products of 1 mole of diols having 2-4 carbon atoms with 1-20 moles of at least one C 2-4 alkylene oxide, and trimethylolpropane trimethacrylate. In the examples the following starting materials are copolymerized: tetraethylene glycol dimethacrylate; ethylene glycol dimethacrylate, diethylene glycol dimethacrylate and maleic anhydride using azoisobutyronitrile as initiator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2360075A GB1413383A (en) | 1972-03-30 | 1973-03-29 | Cross-linked copolymers and their production |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2215539A DE2215539C2 (en) | 1972-03-30 | 1972-03-30 | New water-insoluble enzyme, in particular penicillin acylase or enzyme inhibitor preparations |
| GB2360075A GB1413383A (en) | 1972-03-30 | 1973-03-29 | Cross-linked copolymers and their production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1413383A true GB1413383A (en) | 1975-11-12 |
Family
ID=10198289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2360075A Expired GB1413383A (en) | 1972-03-30 | 1973-03-29 | Cross-linked copolymers and their production |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1413383A (en) |
-
1973
- 1973-03-29 GB GB2360075A patent/GB1413383A/en not_active Expired
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |