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    • 2. 发明授权
    • Tackified acrylic adhesives
    • 增强丙烯酸粘合剂
    • US5695837A
    • 1997-12-09
    • US425812
    • 1995-04-20
    • Albert I. EveraertsMark D. PurgettBradley S. Momchilovich
    • Albert I. EveraertsMark D. PurgettBradley S. Momchilovich
    • C09J4/02C09J7/02C09J123/00C09J133/06C09J151/06C08F8/04
    • C09J151/06C09J133/06C09J7/0217Y10T428/14Y10T428/1476Y10T428/249982Y10T442/2738
    • The invention provides a clear and essentially colorless adhesive comprising (A) the polymerization reaction product of starting materials comprising: (a) 25 to 95 parts by weight of a polymerizable component comprising at least one acrylic or methacrylic ester of a non-tertiary alkyl alcohol in which the alkyl group contains 4 to 20 carbon atoms; (b) at least 5 parts by weight of at least one copolymerizable polar comohomer having a strong hydrogen bonding capability selected from an acid, an amide, an anhydride, or a lactam, the sum of (a) and (b) amounting to 100 parts by weight; and (B) 1 to 75 parts by weight, per 100 parts by weight of the sum of components (a) and (b), of a tackifier; said tackifier comprising a water white, hydrogenated resin produced from a hydrocarbon feedstock containing at least 50 percent vinyl aromatic monomer and from 0 to 40 percent by weight of olefin chain transfer agents, said tackifier having: (i) a retained aromaticity on a weight percent of monomers in the feedstock basis of 80 to 95 percent; (ii) a softening point of 65.degree. to 120.degree. C.; (iii) a Mz of less than 1800; (iv) no molecular weight fractions above 7000; and (v) a polydispersity of less than 2.5, wherein said starting materials (a) and (b) are substantially solvent free.
    • 本发明提供了一种透明且基本上无色的粘合剂,其包含(A)原料的聚合反应产物,其包含:(a)25至95重量份的可聚合组分,其包含至少一种非叔烷基醇的丙烯酸或甲基丙烯酸酯 其中烷基含有4至20个碳原子; (b)至少5重量份具有选自酸,酰胺,酸酐或内酰胺的强氢键合能力的至少一种可共聚的极性共聚物,(a)和(b)的总和为100 重量份; 和(B)每100重量份组分(a)和(b)的总和1至75重量份的增粘剂; 所述增粘剂包含由含有至少50%乙烯基芳族单体和0至40重量%的烯烃链转移剂的烃原料制备的水白色氢化树脂,所述增粘剂具有:(i)保留的重量百分比的芳香性 的原料基础为80%至95%; (ii)软化点为65〜120℃。 (iii)少于1800的Mz; (iv)高于7000的分子量分数; 和(v)小于2.5的多分散性,其中所述原料(a)和(b)基本上不含溶剂。