Abstract: The polyolefin composition of the present invention comprises 45 to 90 parts by weight of a propylene polymer (A) of 0.5 to 10 dl/g in ?.eta.! and at least 100.degree. C. in Tm comprising 100 to 80 mol % of propylene units, 0 to 10 mol % of ethylene units and 0 to 15 mol % of units derived from an .alpha.-olefin having 4 to 12 carbon atoms; 5 to 40 parts by weight of an ethylene/.alpha.-olefin copolymer (B) of 0.5 to 10 dl/g in ?.eta.! comprising 70 to 95 mol % of ethylene units and 5 to 30 mol % of units derived from an .alpha.-olefin having 4 to 12 carbon atoms; and 2 to 25 parts by weight of a propylene/.alpha.-olefin/ethylene terpolymer (C) of 0.5 to 10 dl/g in ?.eta.! comprising 40 to 77 mol % of propylene units, 20 to 40 mol % of units derived from an .alpha.-olefin having 4 to 12 carbon atoms and 2 to 20 mol % of ethylene units, provided that the total of components (A), (B) and (C) is 100 parts by weight.

Abstract: Disclosed are a polypropylene composition comprising 95-55 parts by weight of polypropylene (A) and 5-45 parts by weight of an ethylene/1-butene random copolymer (B-1) which contains constituent units derived from 1-butene in an amount of 15 to 25% by mol; and a polypropylene composition comprising 95-55 parts by weight of polypropylene (A) and 5-45 parts by weight of an ethylene/1-octene random copolymer (B-2) which contains constituent units derived from 1-octene in an amount of 8 to 20% by mol. Each of the random copolymers (B-1) and (B-2) has an intrinsic viscosity [.eta.] of 1.5 to 3.5 dl/g as measured in decalin, a glass transition temperature (Tg) of not higher than -50.degree. C., a crystallinity of less than 20% as measured by X-ray diffractometry, a randomness parameter (B value) of 1.0 to 1.4 as measured by .sup.13 C-NMR spectroscopy. With respect to a melting point as measured by a differential scanning calorimeter (DSC) as the main peak, the copolymer (B-1) has a value of not higher than 60.

Abstract: Disclosed are a polypropylene composition comprising 95-55 parts by weight of polypropylene (A) and 5-45 parts by weight of an ethylene/1-butene random copolymer (B-1) which contains constituent units derived from 1-butene in an amount of 15 to 25% by mol; and a polypropylene composition comprising 95-55 parts by weight of polypropylene (A) and 5-45 parts by weight of an ethylene/1-octene random copolymer (B-2) which contains constituent units derived from 1-octene in an amount of 8 to 20% by mol. Each of the random copolymers (B-1) and (B-2) has an intrinsic viscosity [.eta.] of 1.5 to 3.5 dl/g as measured in decalin, a glass transition temperature (Tg) of not higher than -50.degree. C., a crystallinity of less than 20% as measured by X-ray diffractometry, a randomness parameter (B value) of 1.0 to 1.4 as measured by .sup.13 C-NMR spectroscopy. With respect to a melting point as measured by a differential scanning calorimeter (DSC) as the main peak, the copolymer (B-1) has a value of not higher than 60.

Abstract: In an uncured filled coating composition comprising (a) a polyfuntional acrylic-type carboxylic acid ester monomer or its prepolymer, (b) a polymerization initiator capable of curing said monomer or prepolymer (a), and (c) an inorganic solid filler; the improvement wherein said composition consists essentially of(A) 100 parts by weight of said polyfunctional acrylic-acid carboxylic acid ester monomer or its prepolymer (a), said polyfunctional monomer or prepolymer (a) being composed of 0 to 75% by weight of a trifunctional or higher acrylic-type carboxylic acid ester monomer or its prepolymer having a molecular weight of about 200 to about 700 and 25 to 100% by weight of a difunctional acrylic-type carboxylic acid ester monomer or its prepolymer having a molecular weight of about 160 to about 400,(B) 0.

Abstract: An improved process for copolymerizing the monomers (a) at least one monomer selected from the group consisting of monoolefins, non-conjugated polyenes, conjugated polyenes, haloolefins, unsaturated esters of carboxylic acids and unsaturated ethers and (b) an acrylic monomer under slurry polymerization conditions to give a copolymer containing the monomeric units (a) and (b) alternately connected to each other with good regularity which has a narrow molecular weight distribution and is not liable to gelling during its formation.

Abstract: A composition suitable for a hot melt-type white traffic paint which has good melt flowability, good thermal stability and high whiteness is prepared by blending: (A) an acid-modified hydrocarbon resin having an acid value of 0.10 to 15 obtained by oxidizing a hydrocarbon resin or reacting it with an .alpha.,.beta.-unsaturated carboxylic acid, or an ester-modified hydrocarbon resin obtained by reacting the acid-modified hydrocarbon resin with an alcohol; with (B) titanium dioxide.