发明名称 |
Polyolefin based hot melt adhesive composition |
摘要 |
A hot melt adhesive composition includes at least a semi-crystalline copolymer of propylene and a polyethylene wax having a Brookfield viscosity of about 20 cP to 500 cP at 140° C., a density of about 0.95 g/cm3 to 0.99 g/cm3 between 23° C. and 25° C., and a Mettler drop point of about 110° C. to 135° C., wherein the composition is characterized by a effective set time of about 0.1 second to 5 seconds. Articles including the composition and methods of making articles including the composition are described. |
申请公布号 |
US9200185(B2) |
申请公布日期 |
2015.12.01 |
申请号 |
US201414464296 |
申请日期 |
2014.08.20 |
申请人 |
ADHERENT LABORATORIES, INC. |
发明人 |
Knutson Keith C.;Quinn Thomas H.;Bunnelle William L. |
分类号 |
C08L23/06;C08L23/04;C09J123/14;C08K5/134;C08K5/13 |
主分类号 |
C08L23/06 |
代理机构 |
Seager, Tufte & Wickhem, LLP |
代理人 |
Seager, Tufte & Wickhem, LLP |
主权项 |
1. A hot melt adhesive composition comprising:
(a) a copolymer of propylene and at least one comonomer selected from the group consisting of ethylene and C4 to C20 α-olefins, wherein the copolymer has a propylene content of greater than 65 mole %, a Brookfield viscosity at 190° C. of about 200 cP to 25,000 cP, and a density of about 0.860 g/cm3 to 0.868 g/cm3; and (b) about 0.1 wt % to 15 wt % of a polyethylene wax having a Brookfield viscosity of about 20 cP to 500 cP at 140° C., a density of about 0.95 g/cm3 to 0.99 g/cm3 between 23° C. and 25° C., and a Mettler drop point of about 110° C. to 135° C.,wherein the composition is characterized by an effective set time of about 0.1 second to 5 seconds. |
地址 |
St. Paul MN US |