Abstract: The invention is directed toward novel high molecular weight and high purity mPEG alcohol compositions as well as a process for obtaining said compositions by removing PEG diols from the mPEG alcohol after polymerization is complete.

Abstract: The present invention is an flame resistant resin composition comprising: A) from about 50 to about 90 parts by weight of a rubber modified polymer derived from a vinyl aromatic monomer, B) from about 1 to about 8 parts by weight of an impact modifier, C) from about 0.5 to about 5 parts by weight of a polyolefin having a density of greater than 0.940 g/cm3 and a melt flow rate of less than 4 as measured according to ASTM D1238 at 190° C. using a 2.16 kg weight, D) a sufficient amount of a halogen-containing flame retardant to provide the composition with 7 to 14 parts by weight halogen, and E) from about 2 to about 6 parts by weight of an inorganic flame retardant synergist.

Abstract: Blends of polymeric materials comprising (A) from about 1 to about 99 weight percent of at least one interpolymer containing (1) from about 1 to about 65 mole percent of (a) at least one vinylidene aromatic monomer, or (b) at least one hindered aliphatic vinylidene monomer, or (c) a combination of at least one vinylidene aromatic monomer and at least one hindered aliphatic vinylidene monomer, and (2) from about 35 to about 99 mole percent of at least one aliphatic .alpha.-olefin having from 2 to about 20 carbon atoms; and (B) from about 1 to about 99 weight percent of at least one homopolymer or interpolymer of one or more vinylidene aromatic monomers and/or one or more hindered aliphatic vinylidene monomers. These blends have been observed to possess improved properties when compared to the individual polymers comprising the blend and to provide materials with enhanced processability and temperature ranges of performance.

Abstract: The present invention is directed to rubber modified polymers which contain a non-block grafted rubber having a degree of grafting of at least 30 percent at the point of phase inversion and a specified amount of grafted vinyl aromatic polymer.

Abstract: A process for preparing polymers comprising pendant ketone functional moieties, the steps of the process comprising exposing a mixture comprising an ethylenically unsaturated addition polymerizable monomer and a .beta.-substituted ketone compound corresponding to the formula:XCH.sub.2 --CHR'--C(O)RwhereX is a suitable leaving group,R' is hydrogen or R; andR is alkyl or aryl of up to 12 carbonsto vinyl ketone monomer formation conditions to prepare the corresponding vinyl ketone monomer from the .beta.-substituted ketone compound and subsequently exposing the mixture to addition polymerization conditions to prepare the resulting polymer.

Abstract: Photodegradable and biodegradable polymers comprising both ketone functionality and hydrolyzable polymer ester or amide functionality and thermoplastic articles formed therefrom are disclosed.