Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1991-04-19
1993-02-23
Henderson, Christopher
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
526288, C08F 2000, C08F 2600
Patent
active
051891123
ABSTRACT:
Polymers containing repeating units of: ##STR1## and optionally random distribution of other units derived from at least one vinyl monomer, R.sub.1 is H; alkyl, cycloalkyl or aryl each of which is unsubstituted or substituted by at least one halogen; ##STR2## (R.sub.7 is H, alkyl, cycloalkyl or aryl); A is a single bond; alkylene, cycloalkylene or arylene; or ##STR3## (B is alkylene, cycloalkylene or arylene); R.sub.2, R.sub.3 and R.sub.4 are alkyl, cycloalkyl or aryl; it being possible for at least one of R.sub.3 and R.sub.4 to contain at least one hydroxyl or carboxylic acid groups or to represent a polyoxyethylene or polyester sequence.
These polymers are useful for the preparation of graft copolymers containing the units of the formula: ##STR4## where Po is a vinyl or a diene polymer sequence, and other vinyl units. These graft copolymers are useful especially as compatibility agents.
REFERENCES:
patent: 4239865 (1980-12-01), Tarao
Nair et al., "Functionalization of PMMA by a functional `Iniferter`, etc." Journal of Polymer Science, vol. 27, No. 6, pp. 1795-1800, May 1989.
Nair et al., "Triblock Copolymers Vai Thermal `macroiniferters`, etc." Makromol. Chem. 192, 579-590 (1991).
Elf Atochem S.A.
Henderson Christopher
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