A maleimide based copolymer, manufacturing method thereof, and a resin composition using the maleimide based copolymer is provided. The maleimide based copolymer includes 40 to 60 mass % of aromatic vinyl monomer unit, 5 to 20 mass % of vinyl cyanide monomer unit, 35 to 50 mass % of maleimide monomer unit, and 0 to 10 mass % of monomer copolymerizable with these monomer units. The maleimide based copolymer has a glass transition temperature of 165° C. or higher and a melt mass flow rate of 25 to 80 g/10 min measured at 265° C. with 98 N load. By using such maleimide based copolymer, flowability can be improved without decreasing heat resistance providing ability.

Provided herein is a polymer composition comprising a polyhydroxyamino ether (e.g., a crosslinked polyhydroxyamino ether) and printed circuit boards comprising the same.

Provided herein is a polymer composition comprising a polyhydroxyamino ether (e.g., a crosslinked polyhydroxyamino ether) and printed circuit boards comprising the same.

Described are polymerizable high energy light absorbing compounds. The compounds absorb various wavelengths of ultraviolet and/or high energy visible light and are suitable for incorporation in various products, such as biomedical devices and ophthalmic devices.

Described are polymerizable high energy light absorbing compounds. The compounds absorb various wavelengths of ultraviolet and/or high energy visible light and are suitable for incorporation in various products, such as biomedical devices and ophthalmic devices.

Described are polymerizable high energy light absorbing compounds. The compounds absorb various wavelengths of ultraviolet and/or high energy visible light and are suitable for incorporation in various products, such as biomedical devices and ophthalmic devices. Such devices exhibit a number of desirable properties, including favorable rates of pervaporation.

Described are polymerizable high energy light absorbing compounds. The compounds absorb various wavelengths of ultraviolet and/or high energy visible light and are suitable for incorporation in various products, such as biomedical devices and ophthalmic devices. Such devices exhibit a number of desirable properties, including favorable rates of pervaporation.

High heat resistant ABS molding compositions for use in the automotive sector, electronics, and household or healthcare sector comprising: (A) 15 to 35 wt.-% ABS graft copolymer (A); (B) 15 to 35 wt.-% a-methylstyrene/acrylonitrile copolymer (B) (weight ratio 95:5 to 50:50); (C) 20 to 40 wt.-% styrene/acrylonitrile copolymer (C) (weight ratio 95:5 to 50:50; M.sub.w 150,000 to 300,000); (D) 10 to 30 wt.-% random terpolymer (D) made from 13 to 27 wt.-% α, β ethylenically unsaturated cyclic anhydride, 60 to 74 wt.-% aromatic vinyl monomer, and 13 to 27 wt.-% maleimide monomer); (E) 0.1 to 5 wt.-%, of at least one elastomeric block copolymer (E) comprising a vinylaromatic monomer block S and an elastomeric random diene/vinylaromatic onomer block B/S; hard phase proportion is 1 to 40 vol.-% and the diene proportion is less than 50 wt.-%; and (F) 0 to 5 wt.-% of further additives and/or processing aids (F).

High heat resistant ABS molding compositions for use in the automotive sector, electronics, and household or healthcare sector comprising: (A) 15 to 35 wt.-% ABS graft copolymer (A); (B) 15 to 35 wt.-% a-methylstyrene/acrylonitrile copolymer (B) (weight ratio 95:5 to 50:50); (C) 20 to 40 wt.-% styrene/acrylonitrile copolymer (C) (weight ratio 95:5 to 50:50; M.sub.w 150,000 to 300,000); (D) 10 to 30 wt.-% random terpolymer (D) made from 13 to 27 wt.-% α, β ethylenically unsaturated cyclic anhydride, 60 to 74 wt.-% aromatic vinyl monomer, and 13 to 27 wt.-% maleimide monomer); (E) 0.1 to 5 wt.-%, of at least one elastomeric block copolymer (E) comprising a vinylaromatic monomer block S and an elastomeric random diene/vinylaromatic onomer block B/S; hard phase proportion is 1 to 40 vol.-% and the diene proportion is less than 50 wt.-%; and (F) 0 to 5 wt.-% of further additives and/or processing aids (F).

To provide an aqueous ink composition for ballpoint pen having excellent ink discharge properties at the initial writing (initial touch) even after exposure of the pen tip for a long period of time. The aqueous ink composition for ballpoint pen contains at least 0.1 to 5% by mass of a graft compound of an allyl alcohol-maleic anhydride-styrene copolymer composed of: (a) a polyoxyalkylene alkyl ether unit represented by Formula (I), (b) a maleic anhydride unit, and (c) a styrene unit, the allyl alcohol-maleic anhydride-styrene copolymer having the composition ratio (a):(b):(c) of 25 to 75:25 to 75:0 to 50% by mol and having a mass average molecular weight from 1000 to 50000, and polyoxyalkylene monoalkyl alcohol; 5 to 40% by mass of resin particles; and water; wherein in Formula (I), R represents an alkyl group having 1 to 5 carbons, and m is a positive number of 5 to 50. ##STR00001##