摘要:
A polyamide block copolymer that includes a first segment including a repeating unit represented by Chemical Formula 1, a repeating unit represented by Chemical Formula 2, or a combination thereof; and a second segment including a repeating unit represented by Chemical Formula 3. The variables R1 to R15, and n1 to n8 are defined herein.
摘要:
A reactive composition comprises 65 to 99 parts by weight of a polyamide having the recurring group where R1 is an alkylene radical having 2 to 16 carbon atoms and R2 is hydrogen, an alkyl radical having 1 to 5 carbon atoms or a halogen, said polyamide having a molecular weight of 1000 to 35,000, and correspondingly 35 to 1 parts by weight of a novolac having a viscosity of 50-200,000 centipoises at 25 DEG C., not more than about 50% by weight of the phenolic constituent of said novolac being substituted with an alkyl group containing more than 3 carbon atoms. Specified polyamides are poly(hexamethylene isophthalamide), poly(hexamethylene 5 - t. - butylisophthalamide), poly(hexamethylene 5 - chloro - isophthalamide), poly(decamethylene isophthalamide) and poly(1:2-propylene isophthalamide). Specified novolacs are those made by reacting formaldehyde with phenol, m-cresol, resorcinol and/or naphthol. The compositions may be used as adhesives in the preparation of laminates.
摘要:
The present invention describes the use of poly-o-hydroxy amides (PHAs) for adhesively bonding articles or materials, especially components used in the semiconductor industry, such as chips and wafers, a process for adhesively bonding materials, especially chips and/or wafers, chip and/or wafer stacks produced by the process, and adhesive compositions which comprise the poly-o-hydroxy amides of the formula (I).
摘要:
THIS INVENTION RTELATES TO A HOT MELT ADHESIVE RESIN COMPOSITION WHICH CAN BE SET BY HEAT FAND PRESSURE TO BOND TO SOLID SURFACES. THE ADHESIVE COMPOSTION CONSISTS ESSENTIALLY OF ETHYLENE-CONTAINING POLAR COPOLYMER OR TERPOLYMER IN COMBINATION WITH 10-60% BY WEIGHT OF THE COMPOSITION OF A POLYAMIDE WHICH IS THE REACTION PRODUCT OF AN ALKYLENE OR ARYLENE POLYAMINE OF THE FORMULA:
H2N-(R-NH)X-R''-NH2
WHEREIN R AND R'' ARE ALKYLENE, ARYLALKYLENE AND ARYLENE AND X IS 0 TO 3, AND ALKYLENE DICARBOXYLIC ACID OR ITS ESTES. THE ADHESIVE CAN BE USED TO BOND METAL, CERAMIC, LEATHER, PAPER, WOOD, PLASTIC AND OTHER SURFACES.
摘要:
A composition comprises 65 to 95 parts by weight of a polyamide having the recurring group where R1 is a C2-C16 alkylene radical and R2 is hydrogen, a C1-C2 alkyl radical or a halogen, said polyamide having a molecular weight of 1,000 to 35,000, and correspondingly 35 to 5 parts by weight of a polyepoxide having at least two epoxy groups per molecule. Specified polyamides are those derived from alkylene diamines having 2 to 16 carbon atoms e.g. hexamethylene, tetramethylene, decamethylene, undecamethylene, dodecamethylene, hexadecamethylene and ethylene diamine and isophthalic, 5-1-butyl isophthalic, 5-chloro-isophthalic, methyl isophthalic, propyl isophthalic, isopropyl isophthalic, hexyl isophthalic or 5-fluoro-isophthalic acid. Specified polyepoxides are the reaction products of polyhydric alcohols or phenols e.g. glycols, glycerol, trimethylol propane, bis-phenol-A and polyphenols with epihalohydrins. The two polymers may be blended together in a polyamide solvent e.g. dimethylacetamide or dimethyl formamide or the dry powders may be mixed together optionally in the presence of a solvent for the polyepoxide e.g. acetone, methyl ethyl ketone, toluene, trichlorethylene or perchloroethylene. The resins react on the application of heat.
摘要:
A polyamide block copolymer that includes a first segment including a repeating unit represented by Chemical Formula 1, a repeating unit represented by Chemical Formula 2, or a combination thereof; and a second segment including a repeating unit represented by Chemical Formula 3. The variables R1 to R15, and n1 to n8 are defined herein.
摘要:
Disclosed is a heat-resistant adhesive including: a phenolic hydroxy group-containing aromatic polyamide resin (A) having a structure represented by the following formula (1) (in the formula, m and n each represent an average and satisfy the relation: 0.005≦n/(m+n)
摘要:
The present invention provides an adhesive aid composition having excellent adhesive strength to polyimide films without decreasing mechanical properties and being useful in the field of electric materials. An adhesive aid composition of the present invention contains a phenolic hydroxyl group-containing polyamide and a solvent as essential components. The phenolic hydroxyl group-containing polyamide preferably has a segment represented by formula (1): (wherein R1 represents a divalent aromatic group, and n represents an average number of substituents and is a positive number of 1 to 4). The adhesive aid composition of the present invention is suitably used for bonding polyimide films.
摘要:
The present invention provides an adhesive aid composition having excellent adhesive strength to polyimide films without decreasing mechanical properties and being useful in the field of electric materials. An adhesive aid composition of the present invention contains a phenolic hydroxyl group-containing polyamide and a solvent as essential components. The phenolic hydroxyl group-containing polyamide preferably has a segment represented by formula (1): (wherein R1 represents a divalent aromatic group, and n represents an average number of substituents and is a positive number of 1 to 4). The adhesive aid composition of the present invention is suitably used for bonding polyimide films.