Articles comprising nonpolar polyolefin and polyurethane, and methods for their preparation and use
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C08L-053/00
C08L-023/08
출원번호
US-0446719
(2007-10-31)
등록번호
US-8404780
(2013-03-26)
국제출원번호
PCT/US2007/083141
(2007-10-31)
§371/§102 date
20090422
(20090422)
국제공개번호
WO2008/057878
(2008-05-15)
발명자
/ 주소
Weaver, Laura B.
Batra, Ashish
Ansems, Patricia
Strandburg, Gary M.
Kalinkowski, Matthew J.
출원인 / 주소
Dow Global Technologies LLC
대리인 / 주소
Whyte Hirschboeck Dudek SC
인용정보
피인용 횟수 :
28인용 특허 :
67
초록▼
The adhesion between a low surface energy (i.e., nonpolar) material, e.g., a polyolefin such as polyethylene, and a high surface energy (i.e., polar) material, e.g., a polyester, polyurethane, polycarbonate or polylactic acid, is promoted by blending with the nonpolar material typically from 15 to l
The adhesion between a low surface energy (i.e., nonpolar) material, e.g., a polyolefin such as polyethylene, and a high surface energy (i.e., polar) material, e.g., a polyester, polyurethane, polycarbonate or polylactic acid, is promoted by blending with the nonpolar material typically from 15 to less than 50 wt % of a diol-based thermoplastic polyurethane (d-TPU), e.g., a polydiene diol-based TPU, based on the combined weight of the nonpolar material and the d-TPU. The promoted adhesion allows for the effective painting, printing, over-molding or HF-welding of a nonpolar substrate, e.g., a polyolefin film, with a polar coating, e.g., a paint, ink, etc. Aqueous dispersions can also be made from the blend of nonpolar material and d-TPU.
대표청구항▼
1. An article comprising a first structural component and a second structural component, the first structural component comprising a polar material and the second structural component comprising a blend of 55 to 77 weight percent (wt %) homogeneously branched linear or homogeneously branched substan
1. An article comprising a first structural component and a second structural component, the first structural component comprising a polar material and the second structural component comprising a blend of 55 to 77 weight percent (wt %) homogeneously branched linear or homogeneously branched substantially linear ethylene α-olefin interpolymer and 45 to 23 wt % thermoplastic polydiene-based polyurethane and wherein the blend has a surface energy greater than, or equal to, 34 dyne/cm. 2. The article of claim 1 in which the polydiene-based polyurethane is a polydiene diol-based polyurethane (pd-TPU). 3. The article of claim 1 in which the ethylene α-olefin interpolymer has a molecular weight distribution from 1.5 to 4.5. 4. The article of claim 2 in which the ethylene α-olefin interpolymer is substantially linear. 5. The article of claim 3 in which the ethylene α-olefin interpolymer is an ethylene/α-olefin random interpolymer and the diisocyanate component of the polydiene-based polyurethane is an aliphatic diisocyanate. 6. The article of claim 4 in which the ethylene α-olefin interpolymer is an ethylene/α-olefin random interpolymer, the diol component of the polydiene diol polyurethane is at least partially hydrogenated, and the diisocyanate component of the polydiene diol polyurethane is an aliphatic diisocyanate. 7. A blend comprising (i) 55 to 77 weight percent (wt %) ethylene α-olefin multi-block copolymer, and (ii) 45 to 23 wt % thermoplastic polydiene-based polyurethane and wherein the blend has a surface energy greater than, or equal to, 34 dyne/cm. 8. The blend of claim 7 in which the polydiene-based polyurethane is polydiene diol-based polyurethane. 9. The blend of claim 7 in which the ethylene multi-block copolymer has a molecular weight distribution from 1.5 to 4.5. 10. The blend of claim 9 in which the diisocyanate component of the polydiene-based polyurethane is an aliphatic diisocyanate. 11. The blend of claim 9 in which the diol component of the polydiene diol-based polyurethane is at least partially hydrogenated, and the diisocyanate component of the polydiene diol-based polyurethane is an aliphatic diisocyanate. 12. An aqueous dispersion comprising water and from 30 to 70 wt % solids, based on the total weight of the dispersion, the solids comprising a blend of a homogeneously branched linear or homogeneously branched substantially linear ethylene α-olefin interpolymer and thermoplastic polydiene-based polyurethane, the blend comprising from 55 to 77 weight percent (wt %) of the homogeneously branched or substantially linear homogeneously branched ethylene α-olefin interpolymer and from 45 to 23 wt % of the polydiene-based polyurethane, the solids having an average particle size of from 0.4 to 2.5 microns and wherein the dispersion has a surface energy greater than, or equal to, 34 dyne/cm when measured as a film. 13. The dispersion of claim 12 in which the polydiene-based polyurethane is a polydiene diol-based polyurethane. 14. The dispersion of claim 12 in which the homogeneously branched linear or homogeneously branched substantially linear ethylene α-olefin interpolymer has a molecular weight distribution from 1.5 to 4.5. 15. The dispersion of claim 14 in which the diisocyanate component of the polydiene-based polyurethane is an aliphatic diisocyanate. 16. The dispersion of claim 13 in which the diol component of the polydiene diol-based polyurethane is at least partially hydrogenated, and the diisocyanate component of the polydiene diol-based polyurethane is an aliphatic diisocyanate. 17. An article comprising a first structural component and a second structural component, the first structural component comprising a polar material and the second structural component comprising a blend of a olefin multi-block interpolymer and a thermoplastic polydiene-based polyurethane wherein the blend comprises from 55 to 77 weight percent (wt %) of the olefin multi-block interpolymer and from 45 to 23 wt % of the polydiene-based polyurethane and wherein the blend has a surface energy greater than, or equal to, 34 dyne/cm.
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