Abstract: A compatible polymer mixture, comprising:(I) 0.1-99.9 wt. % of a polymer P1, comprised of monomer units of formula I ##STR1## wherein R.sub.1 is hydrogen or a methyl group; and (II) 99.9-9-0.1 wt. % of a copolymer P2, comprised of:30-90 parts by wt. of a methacrylic acid ester monomer of formula II ##STR2## wherein R.sub.2 is methyl or ethyl; 70-10 parts by wt. of a methacrylic acid ester monomer of formula III ##STR3## wherein R.sub.3 is a hydrocarbon group with 3-24 carbon atoms; and 0-10 parts by wt. of a third monomer M which is copolymerizable with but different from the monomers of formulas II and III.

Abstract: A compatible polymer blend consisting of: (I) 0.1-99.9% by weight of a polymerisate P1, which is formed from monomers of formula I: ##STR1## wherein R.sub.1 is hydrogen or methyl, and (II) 99.9-0.1% by weight of copolymerisate P2, which is formed from (a) 5-40% by weight of cyclohexyl methacrylate, (b) 30-70% by weight of a methacrylic ester of formula II: ##STR2## wherein R.sub.2 is methyl or ethyl, (c) 10-50% by weight of a methacrylic ester of formula III: ##STR3## wherein R.sub.3 is a hydrocarbon group having 4-18 carbon atoms, and (d) 0-10 parts by weight of a monomer M which is copolymerizable with monomers of (a)-(c), yet different from these monomers.

Abstract: A composition universally usable as an impact modifier for synthetic resins comprising(A) from 10 to 80 percent by weight of a polymer of the formula ##STR1## wherein R.sub.1 is hydrogen or methyl, R.sub.2 is C.sub.5 -C.sub.7 cycloalkyl or such cycloalkyl substituted by C.sub.1 -C.sub.12 alkyl, y has a value such that the corresponding monomer or monomers are from 5 to 50 percent by weight of polymer (A), and x has a value such that the corresponding monomer, together with up to 20 percent by weight of one or more optional comonomers, is the balance by weight, and(B) from 20 to 90 percent by weight of an optionally crosslinked polymer having a glass transition temperature, T.sub.g, below 10.degree. C. and preferably less than -10.degree. C., polymer (B) being at least partially bonded covalently to polymer (A).

Abstract: The invention relates to compatible polymer blend comprised of two disparate polymers, namely:(A) 1-99 wt. % of a first polymer comprised of monomer units of formula (I): ##STR1## wherein R.sub.1 is hydrogen or methyl, and R.sub.2 is ethyl or a hydrocarbon with 4-40 carbon atoms; and(B) 99-1 wt. % of a second polymer comprised of monomer units of formula (II): ##STR2## wherein R.sub.2 is hydrogen or methyl, and R.sub.4 is ethyl or a hydrocarbon group with 4-40 carbon atoms; and wherein:(a) the sum of (A)+(B)=100 wt. %;(b) when R.sub.2 and R.sub.4 are the same, then R.sub.1 and R.sub.3 are different, and when R.sub.1 and R.sub.3 are the same, then R.sub.2 and R.sub.4 are different; and(c) the groups R.sub.2 and R.sub.4 have similar van der Waals volumes.

Abstract: The invention relates to compatible polymer blends comprised of a polymer component containing cyclohexyl (meth)acrylate as a monomer, and further comprised of a polymer component containing styrene as a monomer.

Abstract: A compatible polymer mixture, comprising:(I) 0.1-99.9 wt. % of a polymer P1, comprised of monomer units of formula I ##STR1##wherein R.sub.1 is hydrogen or a methyl group; and(II) 99.9-0.1 wt. % of a copolymer P2, comprised of:30-90 parts by wt. of a methacrylic acid ester monomer of formula II ##STR2## wherein R.sub.2 is methyl or ethyl; 70-10 parts by wt. of a methacrylica acid ester monomer of formula III ##STR3## wherein R.sub.3 is a hydrocarbon group with 3-24 carbon atoms; and 0-10 parts by wt. of a third monomer M which is copolymerizable with but different from the monomers of formulas II and III.

Abstract: A compatible polymer blend consisting of:(I) 0.1-99.9% by weight of a polymerisate P1, which is formed from monomers of formula I: ##STR1## wherein R.sub.1 is hydrogen or methyl, and (II) 99.9-0.1% by weight of copolymerisate P2, which is formed from (a) 5-40% by weight of cyclohexyl methacrylate, (b) 30-70% by weight of a methacrylic ester of formula II: ##STR2## wherein R.sub.2 is methyl or ethyl, (c) 10-50% by weight of a methacrylic ester of formula III: ##STR3## wherein R.sub.3 is a hydrocarbon group having 4-18 carbon atoms, and (d) 0-10 parts by weight of a monomer M which is copolymerizable with monomers of (a)-(c), yet different from these monomers.

Abstract: Compatible polymer mixtures which consist of two polymer components which are(A) 0.1-99.9% by weight of a polymer P1, which is composed by at least 30% by weight of monomers with Formula I, ##STR1## where R.sub.1 stands for hydrogen or methyl and R.sub.2 for a hydrocarbon group with 1-18 carbon atoms, and(B) 99-0.1% by weight of a polymer P2 which is composed of a monomer with Formula II by at least 30% by weight ##STR2## where R.sub.3 stands for hydrogen, methyl or a group --CH.sub.2 --X--CHR.sub.5 R.sub.6, X stands for a group ##STR3## where Z is oxygen or --NR.sub.4, Z' is oxygen or --NR.sub.4, and R.sub.4 is hydrogen or an alkyl gorup with 1-12 carbon atoms, --CHR.sub.5 R.sub.6 stands for an aliphatic or araliphatic hydrocarbon group with 5-24 carbona atoms.

Abstract: A method for making a thermoplastically processable polymer by emulsion polymerizing at least 80 percent by weight of methyl methacrylate monomer with up to 20 percent by weight of at least one other monomer in an aqueous phase at a temperature from 0.degree. C. to 100.degree. C. in the presence of a polymerization initiator and a chain transfer agent in a molar ratio from 1:2 to 1:100,000, said chain transfer agent being from 0.01 to 5 percent by weight of said monomers, and then separating said polymer and said aqueous phase.

Abstract: Compatible polymer mixtures of a polymer component which contains cyclohexyl (meth)acrylate as a monomer and a polymer component which contains .alpha.-methyl styrene as a monomer.

Abstract: A method for making thermostable methyl methacrylate/alpha-methylstyrene copolymers having a high heat distortion temperature and adaptable to use as molding compounds by emulsion polymerization of these monomers together with lower alkyl acrylates and/or styrene, the water phase being less than 70 weight percent of the total monomer/water components and the amount of emulsifier being less than 0.5 weight percent of the water component, the copolymer being isolated by freeze coagulation or extruder pinch-off.