Starch-(meth)acrylate graft copolymer, oil-swellable...

C - Chemistry – Metallurgy – 08 – F

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C08F 251/00 (2006.01) C08L 21/00 (2006.01) C08L 51/02 (2006.01) C09K 8/44 (2006.01) E21B 33/12 (2006.01)

Patent

CA 2635839

A kind of starch-(meth)acrylate graft copolymer and its preparation method. Said copolymer is copolymerised from (meth)acrylate monomer and starch in a ratio of (0.4-8):1 by weight, the graft copolymer is grafted with one or more kinds of (meth)acrylate monomer, with the starch macromolecule as the backbone, whose degree of graft is equal or more than 70%. A kind of oil- absorbing expansion material contains the starch-(meth)acrylate graft copolymer as expansion-increasing agent. Oil and water-absorbing expansion material comprises said starch-(meth)acrylate graft copolymer, water absorbent, react monomer, surfactant and matrix. Both sealer and packer are made of said oil-absorbing expansion material as well as oil and water- absorbing expansion material.

L'invention concerne une sorte de copolymère greffé de (méth)acrylate d'amidon et son procédé de préparation. Ce copolymère est copolymérisé à partir d'un monomère de (méth)acrylate et d'amidon à un ratio de (0,4-8):1 en poids, le copolymère greffé est greffé avec un ou plusieurs sortes de monomères de (méth)acrylate, la macromolécule d'amidon servant de squelette, dont le degré de greffe est égal à plus de 70 %. Une sorte de matériau de dilatation absorbant l'huile contient le copolymère greffé amidon-(méth)acrylate en tant qu'agent d'augmentation de la dilatation. Un matériau de dilatation absorbant l'huile et l'eau comprend un copolymère greffé amidon-(méth)acrylate, un absorbant d'eau, un monomère réactif, un tensioactif et une matrice. L'agent de scellement et la garniture d'étanchéité sont constitués du matériau de dilatation absorbant l'huile et du matériau de dilatation absorbant l'huile et l'eau.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Starch-(meth)acrylate graft copolymer, oil-swellable... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Starch-(meth)acrylate graft copolymer, oil-swellable..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Starch-(meth)acrylate graft copolymer, oil-swellable... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1635424

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.