MEZCLAS ADHESIVAS

• Main Authors: HODGSON, PHILIP, KENNETH, GORDON, BONNER, JAMES, GRAHAM
• Format: Patent
• Language: Spanish
• Published: 01.03.1999
• Edition: 6
• Subjects: ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; ADHESIVES; CHEMISTRY; DYES; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; PAINTS; PERFORMING OPERATIONS; POLISHES; TRANSPORTING; USE OF MATERIALS AS ADHESIVES

UNA MEZCLA ADHESIVA QUE CONTIENE POLIOLEFINA CONSTA DE: (A) DE 1 A 30 PARTES EN PESO DE UN COPOLIMERO DE INJERTO QUE TIENE UNA PARTE PRINCIPAL DE POLIOLEFINA CON DE UN 0,001 A UN 30% EN PESO DE AL MENOS UN ACIDO CARBOXILICO INSATURADO ETILENICAMENTE POLIMERIZABLE O DERIVADO DEL MISMO, (B) DE 70 A 90 PARTES EN PESO DE UNA POLIOLEFINA SIEMPRE QUE AL MENOS 5 PARTES EN PESO DE (B) SEA (C) UN POLIETILENO QUE TIENE UNA DENSIDAD DE MENOS DE 930 KGM-3 EN DONDE EL COPOLIMERO DE INJERTO (A) HAYA REACCIONADO CON UN COMPUESTO (D) QUE TIENE AL MENOS DOS GRUPOS AMINO PRIMARIOS O SECUNDARIOS, SIENDO AL MENOS UNO UN GRUPO AMINO PRIMARIO, SIENDO LA SUMA DE (A), (B), (C) 100 PARTES EN PESO. TAMBIEN SE PRESENTAN ESTRUCTURAS MULTICAPA QUE CONSTAN DE UNA CAPA DE POLIOLEFINA, UNA CAPA DE POLICETONA Y UNA CAPA INTERMEDIA DE UNA MEZCLA ADHESIVA. PCT No. PCT/GB94/02114 Sec. 371 Date Jun. 14, 1995 Sec. 102(e) Date Jun. 14, 1995 PCT Filed Sep. 28, 1994 PCT Pub. No. WO95/09212 PCT Pub. Date Apr. 6, 1995A polyolefin-containing adhesive blend comprising: (A) 1 to 30 parts by weight of a graft copolymer having a polyolefin backbone grafted with 0.001 to 30% by weight of at least one polymerisable ethylenically unsaturated carboxylic acid or derivative thereof, (B) 70 to 99 parts by weight of a polyolefin provided that at least 5 parts by weight of (B) is (C) a polyethylene having a density of less than 930 kgm-3 wherein the graft copolymer (A) has been reacted with a compound(D) which has at least two primary or secondary amino groups at least one of which is a primary amino group, the sum of (A), (B) and (C) being 100 parts by weight. Multilayer structures comprising a polyolefin layer, a polyketone layer and an intermediate layer of the adhesive blend are also disclosed.