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    • 4. 发明授权
    • Coated abrasive article
    • 涂层磨料制品
    • US06359027B1
    • 2002-03-19
    • US09564013
    • 2000-05-03
    • Gregg D. DahlkeRobert J. DeVoeClayton A. GeorgeNaimul Karim
    • Gregg D. DahlkeRobert J. DeVoeClayton A. GeorgeNaimul Karim
    • C08F248
    • C08G59/68B24D3/28B24D18/00C09D163/00Y10S430/114Y10S430/115Y10T428/1452Y10T428/25Y10T428/254Y10T428/28Y10T428/2809Y10T428/2852Y10T428/31511C08L2666/04
    • A coated abrasive article comprises a backing, a first binder on the backing, and a plurality of abrasive particles in the first binder. The first binder precursor is an energy-curable preferably, melt-processable resin containing an epoxy resin, an ethylene-vinyl acetate copolymer, and a curing agent for crosslinking the epoxy resin that is cured to provide a crosslinked make coating. The above binder precursors of the invention are preferably free of homopolymers and copolymers of olefinic monomers. In another aspect, the invention also describes an energy curable first binder precursor containing an epoxy resin, an ethylene-vinyl acetate copolymer, a polyfunctional acrylate component and a curing agent for crosslinking the epoxy resin that is cured to provide a crosslinked make coating. The invention also relates to a method of producing such coated abrasive articles and a surface-treated backing material.
    • 涂覆的磨料制品包括背衬,背衬上的第一粘合剂和第一粘合剂中的多个磨料颗粒。 第一粘合剂前体是能够固化的优选可熔融加工的树脂,其包含环氧树脂,乙烯 - 乙酸乙烯酯共聚物和用于交联环氧树脂的固化剂,其被固化以提供交联的成膜涂层。 本发明的上述粘合剂前体优选不含烯烃单体的均聚物和共聚物。 在另一方面,本发明还描述了一种能量可固化的第一粘合剂前体,其包含环氧树脂,乙烯 - 乙酸乙烯酯共聚物,多官能丙烯酸酯组分和用于交联环氧树脂的固化剂,其被固化以提供交联的成型涂层。 本发明还涉及生产这种涂覆的磨料制品和经表面处理的背衬材料的方法。
    • 8. 发明授权
    • Aminoplast resin/thermoplastic polyamide presize coatings for abrasive article backings
    • 氨基塑料树脂/热塑性聚酰胺预涂磨料制品背衬的涂料
    • US06635719B2
    • 2003-10-21
    • US09828058
    • 2001-04-06
    • Robert J. DeVoeGregg D. Dahlke
    • Robert J. DeVoeGregg D. Dahlke
    • C08L7700
    • C09D161/20B24D3/28B24D11/02C08L61/20C08L77/00Y10T442/20Y10T442/2361Y10T442/2738Y10T442/2762Y10T442/2779Y10T442/2811Y10T442/60Y10T442/647Y10T442/651
    • The present invention provides a composition for use in coated abrasives. The curable composition comprises a mixture of: i) from about 30 to about 60 weight percent of an oligomeric aminoplast resin having on average at least one pendant &agr;,&bgr;-unsaturated carbonyl group per oligomeric unit; ii) from about 70 to about 40 weight percent of a thermoplastic polyamide miscible in said aminoplast resin, the weight percents being based on the total resin content; and iii) a sufficient amount of a catalyst for the curable oligomeric aminoplast resin having on average at least one pendant &agr;,&bgr;-unsaturated carbonyl group per oligomeric unit, said catalyst being stable at a temperature of mixing of the components. The curable composition can either be in the form of a melt-processable solid or a molten mixture. The present invention also provides single and multilayered treated backing substrates used in coated abrasives.
    • 本发明提供一种用于涂覆磨料的组合物。 可固化组合物包含以下混合物:i)约30至约60重量%的低聚氨基塑料树脂,每个低聚单元平均具有至少一个侧链α,β-不饱和羰基; ii)约70至约40重量%的可混合在所述氨基塑料树脂中的热塑性聚酰胺,所述重量百分比基于总树脂含量; 和iii)足量的用于可固化的低聚氨基塑料树脂的催化剂,其平均每个低聚单元具有至少一个α,β-不饱和羰基侧基,所述催化剂在组分的混合温度下是稳定的。 可固化组合物可以是可熔融加工的固体或熔融混合物的形式。 本发明还提供了用于涂覆的研磨剂中的单层和多层处理的背衬基材。