anti-graft
2.Abstract: Unsaturated polyester with low shrinkage composied of anti-shrinking agent,thermoplastics,dispersion-stabilizer,a kind of graft copolymer made from styrene and saturated polyester,shaped like a comb for its molecular structure and UPR in certain structure and some factors effecting on low shrinkage were introduced in this paper.
3.COS-2 is a graft modified product of cationic starch The mud characteristic of OGS-2 was evaluated in laboratory,the experimental results show that CGS-2 has the following properties:obvious filtration-reducing, reltively strong salt resistance and heat resistance abilities, and fairly good anti-collapse.
5.Methods: The artery peduncle goes against the flow an island shape skin petal emergency medical treatment issue after the clinical practice belt shin to repair 13 examples heels department soft tissue damage patient, purely drifts away for the area application to graft skin the repair wound, after the technique applies "three anti-" the treatment.

