국제 및 국내 특허문헌 검색
이 애플리케이션의 일부 콘텐츠는 현재 사용할 수 없습니다.
이 상황이 계속되면 다음 주소로 문의하십시오피드백 및 연락
1. (WO2008014109) SHAPE MEMORY POLYMER ARTICLES WITH A MICROSTRUCTURED SURFACE
유의사항: 이 문서는 자동 광학문자판독장치(OCR)로 처리된 텍스트입니다. 법률상의 용도로 사용하고자 하는 경우 PDF 버전을 사용하십시오

What is claimed is:

1. An article, comprising:
a polymeric member including a surface having a microstructure; and
wherein the polymeric member comprises a shape memory polymer, the shape memory polymer comprising a copolymer network comprising the reaction product of a free radically polymerizable siloxane having greater than one functional free radically polymerizable group and at least one (meth)acrylate monomer, wherein the at least one (meth)acrylate monomer, when homopolymerized, forms a homopolymer having a glass transition temperature, a melting temperature, or both greater than about 400C.

2. The article of claim 1, wherein the free radically polymerizable siloxane has a number average molecular weight of about 1,000-200,000 grams per mole.

3. The article of claim 1, wherein the free radically polymerizable siloxane includes a telechelic siloxane.

4. The article of claim 2, wherein the telechelic siloxane includes (meth)acryloxyurea siloxane.

5. The article of claim 2, wherein the telechelic siloxane includes acrylamidoamido siloxane.

6. The article of claim 2, wherein the telechelic siloxane includes
methacrylamidoamido siloxane.

7. The article of claim 2, wherein the telechelic siloxane includes methylstyrylurea siloxane.

8. The article of claim 1, wherein the (meth)acrylate monomer includes isobornyl acrylate.

9. The article of claim 1, wherein the copolymer network includes about 10-70 weight-percent of the free radically polymerizable siloxane.

10. The article of claim 1, wherein the copolymer network includes about 10-60 weight-percent of the free radically polymerizable siloxane.

11. The article of claim 1 , wherein the copolymer network includes about 20-60 weight-percent of the free radically polymerizable siloxane.

12. The article of claim 1, wherein the polymeric member includes a secondary surface having a microstructure.

13. An article, comprising :
a polymeric member including a microstructured surface, wherein the
microstructured surface includes a surface feature that is not visible to an unaided eye; and wherein the polymeric member includes a shape memory polymer.

14. The article of claim 13, wherein the shape memory polymer comprises a copolymer network comprising the reaction product of a free radically polymerizable siloxane having greater than one functional free radically polymerizable group and at least one (meth)acrylate monomer, wherein the at least one (meth)acrylate monomer, when homopolymerized, forms a homopolymer having a glass transition temperature, a melting temperature, or both greater than about 400C.

15. The article of claim 14, wherein the free radically polymerizable siloxane has a number average molecular weight of about 1,000-200,000 grams per mole.

16. The article of claim 14, wherein the (meth)acrylate monomer includes isobornyl acrylate.

17. The article of claim 14, wherein the free radically polymerizable siloxane includes a telechelic siloxane.

18. The article of claim 17, wherein the telechelic siloxane includes
(meth)acryloxyurea siloxane, acrylamidoamido siloxane, methacrylamidoamido siloxane, or methylstyrylurea siloxane.

19. The article of claim 13, wherein the surface feature includes a plurality of depressions.

20. The article of claim 13, wherein the surface feature includes a plurality of projections.

21. The article of claim 13, wherein the polymeric member includes a secondary surface having a microstructure.

22. An article, comprising:
a polymeric member including a microstructured surface, wherein the
microstructured surface includes a surface feature that is not visible to an unaided eye; and wherein the polymeric member includes a shape memory polymer, the shape memory polymer comprising a copolymer network comprising the reaction product of (meth)acryloxyurea siloxane and isobornyl acrylate.

23. An article comprising a shape memory polymer having a microstructured surface and comprising a copolymer network, the copolymer network comprising the reaction product of a free radically polymerizable siloxane having greater than one functional free radically polymerizable group and at least one (meth)acrylate monomer, wherein the at least one (meth)acrylate monomer, when homopolymerized, forms a homopolymer having a glass transition temperature greater than about 400C.