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发明公开
CN102159660A 粘合剂组合物以及由该组合物构成的粘合剂 有权

粘合剂组合物以及由该组合物构成的粘合剂
摘要：
本发明提供一种粘合剂组合物(Y)，包括软质聚丙烯树脂组合物(X)10～70重量份和增粘剂(C)30～90重量份(其中，成分(X)和成分(C)的合计量为100重量份)。所述软质聚丙烯树脂组合物(X)包括满足下述条件(A1)～(A8)的丙烯共聚物(A)40～98重量％和满足下述条件(B1)～(B3)的结晶性等规聚丙烯(B)2～60重量％，(A1)硬度：20～90，(A2)由C3单元50～92摩尔％、C2单元7～24摩尔％、碳原子数4～20的α-烯烃单元3～25摩尔％构成，(A3)Mw/Mn1.2～3.5，(A4)mm85～99.9％，(A5)B值0.8～1.3，(A6)2，1-插入量小于1％，(A7)Tg-10～-50℃，(A8)MFR0.5～500g/10分钟；(B 1)熔点100～175℃，(B2)mmmm90～99.8％，(B3)MFR0.1～100g/10分钟。
摘要（英）：

The invention provides an adhesive composition (Y) comprising 10 to 70 parts by weight of a flexible polypropylene resin composition (X) and 30 to 90 parts by weight of an adhesiveness-imparting agent (C) (provided that the total amount of the components (X) and (C) is taken as 100 parts by weight), wherein the flexible polypropylene resin composition (X) comprises 40 to 98 wt% of a propylene copolymer (A) and 2 to 60 wt% of a crystalline isotactic polypropylene (B), and wherein the propylene copolymer (A) meets the following requirements (A1) to (A8): (A1) the hardness is 20 to 90; (A2) the copolymer is composed of 50 to 92 mol% of a C3 unit, 7 to 24 mol% of a C2 unit and 3 to 25 mol% of an a-olefin unit having 4 to 20 carbon atoms; (A3) the Mw/Mn ratio is 1.2 to 3.5; (A4) the mm is 85 to 99.9%; (A5) the B value is 0.8 to 1.3; (A6) the quantity of 2,1-inserts is less than 1%; (A7) the Tg is -10 to -50 DEG C; and (A8) the MFR is 0.5 to 500 g/10 min, and the crystalline isotactic polypropylene (B) meets the following requirements (B1) to (B3): (B1) the melting point is 100 to 175 DEG C; (B2) the mmmm is 90 to 99.8%; and (B3) the MFR is 0.1 to 100 g/10 min.

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