E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 43/25 (2006.01) C09K 8/62 (2006.01) C09K 8/92 (2006.01) E21B 43/26 (2006.01)
Patent
CA 2332885
An encapsulated breaker is enclosed within a hydrolytically degrad-able polymer coating. Compositions containing this encapsulated breaker, methods of making and methods of use are also described.
L'invention concerne un viscoréducteur encapsulé dans un enrobage polymère dégradable par hydrolyse. L'invention concerne également des compositions contenant ce viscoréducteur, ainsi que des procédés de fabrication et d'utilisation de celui-ci.
Irwin Michael J.
Muir David J.
3m Innovative Properties Company
Smart & Biggar
LandOfFree
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