POLYOLEFIN, ADHESIVE COMPOSITION CONTAINING SAME, AND ADHESIVE TAPE USING SAID ADHESIVE COMPOSITION

摘要

Provided are an adhesive composition which has high holding strength and leaves no residual glue by using a polyolefinic polymer, and an adhesive tape using the same. A polyolefin which satisfies the following conditions (a-1), (b1), and (b2):(a-1) the relationship between the limiting viscosity and the stereoregularity is represented by the formula (i): −20×η+56≦mmmm≦−20×η+64 (wherein η represents the limiting viscosity measured in tetralin at 135° C., and mmmm represents the meso pentad fraction (mol %)); (b1) the meso pentad fraction (mmmm) is from 20 to 60 mol %; and (b2) the limiting viscosity [η] measured in tetralin at 135° C. is from 0.01 to 2.0 dL/g.

主权项

1. A polyolefin which satisfies the following conditions (a-1), (b1), and (b2):
(a-1) the relationship between the limiting viscosity and the stereoregularity is represented by formula (i):
−20×η+56≦mmmm≦−20×η+64  formula (i)(wherein η represents the limiting viscosity measured in tetralin at 135° C., and mmmm represents the meso pentad fraction (mol %));
(b1) the meso pentad fraction (mmmm) is from 20 to 60 mol %; and (b2) the limiting viscosity [η] measured in tetralin at 135° C. is from 0.01 to 2.0 dL/g.