Abstract: Polymer mixtures made from two different polymer components and exhibiting LCST behavior are provided for use in applications which require temperature-dependent light permeability. The polymer mixtures P are made from:P1: from 98 to 2% by weight of poly-.alpha.-methylstyrene (PAMs); andP2: from 2 to 98% by weight of polyvinyl methyl ether (PVMe).

Abstract: The invention relates to light-scattering polystyrene molding compounds comprising40-99.9 weight % of a (optionally impact-strength-modified) polymeric matrix phase comprised of at least 50 weight % styrene and or substituted styrenes, or a mixture thereof; and0.1-60 weight % of scattering bodies comprising a copolymer comprised of:p1) 20-89.5 parts by weight (pbw) methyl methacrylate, ethyl methacrylate, or a mixture thereof;p2) 10-80 pbw of at least one monomer of formula (I) ##STR1## where R.sub.1 represents a C.sub.3-24 alkyl group; and p3) 0.5-10 pbw of at least one crosslinking monomer with two or more ethylenically unsaturated, radically polymerizable groups; andp4) 0-10 pbw of additional ethylenically unsaturated monomers which are radically copolymerizable with (p1), (p2), and (p3); wherein the sum of the amounts of the monomers (p1), (p2), (p3), and (p4) is 100 pbw.

Abstract: Compatible polymer blends containingA) 0.5-99.5 wt. %, preferably 50 to 90 wt. % of a polyphenylene ether, synthesized from units of formula (I) ##STR1## where R.sub.1 stands for an optionally substituted (cyclo)alkyl group or alkoxyl group having 1 to 8 carbon atoms or an optionally substituted aryl group having 6 to 10 carbon atoms or for chlorine,where R.sub.2 stands for an optionally substituted (cyclo)alkyl group or alkoxyl group having 1 to 8 carbon atoms or an optionally substituted aryl group having 6 to 10 carbon atoms or for chlorine, andB) 99.5-0.5 wt. %, preferably 50 to 10 wt. % of a polyaryl(meth)acrylate containing 20-100 wt. % of monomers of the formula (II) ##STR2## where R.sub.3 stands for hydrogen or methyl, Q stands for an alkylidene group having 1 to 6 carbon atoms or a group --(CH.sub.2).sub.m --O--, where m denotes a number from 2 to 6,x stands for zero or 1 andR.sub.

Abstract: This invention relates to high impact strength polymer blends containing at least two two-phase or multiphase polymers P1 and P2, which in turn contain at least one toughening phase A1 or A2 and at least one hardness phase B1 or B2. B1 and B2 differ in chemical structure and are thermodynamically compatible with one another. The polymer blend optionally contains another thermoplastic polymer B'3 and/or another two-phase or multiphase polymer P4 contain at least one toughening phase A4 and at least one hardness phase B4, provided that B'3 and/or B4 are different from B1 and B2 and are thermodynamically compatible with B1 and B2.

Abstract: The invention relates to compatible PM polymer blends with polyesters as mix components, which compriseA) 0.1 to 99.9 wt % of a P1 polyester synthesized from units of formula I ##STR1## where R stands for a group --(CH.sub.2).sub.m -- or for a group ##STR2## and where m stands for a number from 2 to 6, andB) 99.9 to 0.1 wt % of a P2 polyester synthesized to 20-100 wt % from halogen-free monomers of formula II ##STR3## where R.sub.1 stands for hydrogen or methylR.sub.2 stands for a spacing group having 1-6 monomers,R.sub.3 stands for an alkyl group, alkoxy group or aminoalkyl- or dialkyl group having 1 to 6 carbon atoms andq stands for zero or one andz stands for zero, one or two.

Abstract: This invention relates to heat-sealable plastic films PF with at least two-phased structure in the thickness range up to 400 .mu.m that are suitable for tightly sealing plastic comprisinga) a high molecular weight or crosslinked polymer P with a molecular weight Mw greater than 50,000 and a glass transition temperature Tg below 10.degree. C.; andb) a copolymer CP with a glass transition temperature Tg above 20.degree. C. made up of.alpha.) 0-85 wt. % methyl methacrylate.beta.) 0-100 wt. ethyl methacrylate.gamma.) 0-100 wt. cyclohexyl methacrylate, cyclopentyl methacrylate, or a mixture thereof;.delta.) 0-20 wt. % of a monomer copolymerizable with the monomers .alpha.)-.gamma.), and different from them, provided that the sum of the components .alpha.) to .delta.) is 100 wt. %wherein at least 2 wt. % of copolymer CP is covalently bound to polymer P.

Abstract: The invention relates to a heat-sealable plastic film PF with an at least two-stage construction ranging in thickness up to 400 micrometer, that is suitable for tightly sealing plastic containers, comprising:a) a high molecular weight or crosslinked polymer P with a molecular weight in excess of 50,000 and a glass transition point Tg of <10.degree. C.; andb) a copolymer CP with a glass transition point Tg higher than 20.degree. C. and where said copolymer comprises.alpha.) 20 to 80% by weight of at least one monomer of Formula I ##STR1## wherein R.sub.1 stands for methyl or ethyl (preferably methyl); .beta.) 80 to 20% by weight of at least one monomer of Formula II ##STR2## wherein R.sub.2 stands for a C.sub.4-18 alkyl residue, preferably C.sub.4-12 or a C.sub.4-12 cycloalkyl residue different from cyclopentyl or cyclohexyl; and.gamma.

Abstract: The invention relates to a coated substrate comprising:A) 0.1-99.9 wt. % of a polyester-polycarbonate mixture comprised of:a.1) 0.1-99.9 parts by weight (pbw) of a polyester, anda.2) 99.9-0.1 pbw of a polycarbonate; andD) 99.9-0.1 wt.% of:a copolymer comprised ofd.1) 99-50 pbw of units of a monomer of formula I ##STR1## where R.sub.1 represents hydrogen or methyl, R.sub.2 represents hydrogen, a C.sub.1-6 alkyl group or a group --(CH.sub.2).sub.n --QR.sub.3,where n represents zero or a number in the range of 2-6, andQ represents oxygen or a group --NR.sub.4, andR.sub.3 and R.sub.4 each independently represent hydrogen or a C.sub.1-4 alkyl; andA represents a C.sub.1-4 alkylidene group or a group --(CH.sub.2).sub.m --O--,where m is a number from 2 to 6, andq is zero or 1;d.2) 1-50 pbw of units of a comonomer with UV-absorbing groups,a mixture comprised of:d.3) a polymer comprising 99-50 pbw of units of a monomer of formula I as described above, andd.

Abstract: What is disclosed is a method for preparing carrier systems, adaptable to the covalent bonding thereto of biologically active materials, consisting of a known solid support material having a surface coated with a polymer containing functional groups suitable for covalent bonding, by coating the support material with a film-forming polymer dispersion and a non-film-forming polymer dispersion, suitably in admixture, at least one of the two polymer dispersions containing a polymer having functional groups suitable for covalent bonding with a biologically active material.

Abstract: Compatible polymer blends PM, exhibiting a single glass transition temperature Tg comprise(A) 0.1-99.9 wt. % of a polymer P1 comprising at least 95 wt. % styrene; and(B) 99.9-0.1 wt % of a polymer P2 comprising(a) more than 90 wt. % and up to 100 wt. % of ethyl methacrylate, and(b) 0 wt. % up to less than 10 wt. % of at least one monomer copolymerizable with ethyl methacrylate, provided that (a) plus (b) add up to 100 wt. %.The compatible polymer blends may be formulated with another polymer P3, chemically differentiable from P1 and P2, with P3 being incompatible with P1, P2 and PM, to form compositions of better impact resistance than PM. The compatible polymer blends find use in the production of weather-resistant items; data-storage discs, especially for optically readable information; and optical gradient fibers.

Abstract: Elastomers based on acrylates, which are comprised, in the amount of at least 40 wt. % and as much as 100 wt. %, of one or more copolymers having a molecular weight >50,000 daltons and comprised of units of:i) acrylate monomers in the amount of 50-95 wt. %, andii) macromonomers comprised of a vinylic group and, covalently bonded with such group, a polyvinyl unit selected from the group of acrylates and methacrylates and having a glass transition temperature Tg at least 60.degree. C. and molecular weight 500-100,000 dalton.

Abstract: Graft polymerizates on the basis of acrylates and methacrylates, comprise one or more graft monomers of the formula (I) ##STR1## where R.sub.1 stands for a hydrocarbon group having 2-24 carbon atoms and a base polymer of which 55-100 wt. % is synthesized from one or more monomers of the formula (II) ##STR2## wherein R.sub.2 stands for a hydrocarbon group having 2-24 carbon atoms, provided that the groups R.sub.1 and R.sub.2 exhibit Van-der-Waals volumes which differ by less than 30%, and that at least 10 wt. % based on the total monomers of formula (I) are grafted on the base polymer.

Abstract: A macronomer of Formula I: ##STR1## wherein R.sub.1 is hydrogen or methyl, X is a biradical, R.sub.2 is an alkyl group of 1-40 carbon atoms and n is such that the molecular weight of the macromonomer ranges from 500-100,000 Dalton is prepared by transesterifying a monomeric ester of Formula II ##STR2## where R.sub.3 represents an alkyl group with 1-8 C atoms, with a hydroxyl-group-terminated polyalkyl methacrylate of Formula III ##STR3## where X and R.sub.2 have the same meanings as above, andn'=n;with the elimination of alcohol HOR.sub.3, thereby resulting in formation of the compound of Formula I.

Abstract: The invention relates to compatible PM polymer blends with polyesters as mix components, which compriseA) 0.1 to 99.9 wt % of a Pi polyester synthesized from units of formula I ##STR1## where R stands for a group --(CH.sub.2)m-- or for a group ##STR2## and where m stands for a number from 2 to 6, and B) 99.9 to 0.1 wt % of a P2 polyester synthesized to 20-100 wt % from halogen-free monomers of formula II ##STR3## where R.sub.1 stands for hydrogen or methylR.sub.2 stands for a spacing group having 1-6 members,R.sub.3 stands for an alkyl group, alkoxyl group or aminoalkyl- or dialkyl group having 1 to 6 carbon atoms andq stands for zero or one andz stands for zero, one or two.

Abstract: The invention relates to ternary polymer alloys comprised of thermoplastic polymers which alloys are comprised of the following components:A) 0.1-99.9 wt. % of a polyester-polycarbonate mixture comprised of:a.1) 0.1-99.9 parts by weight (pbw) of a polyester, anda.2) 99.9-0.1 pbw of a polycarbonate; andB) 99.9-0.1 wt. % of a poly(meth)acrylate ester PA containing 20-100 pbw of units of at least one monomer of formula I ##STR1## where R.sub.1 represents hydrogen or methyl, R.sub.2 represents hydrogen a C.sub.1-6 alkyl group or a group --(CH.sub.2).sub.n --QR.sub.3,wheren represents zero or a number in the range 2-6, andQ represents oxygen or a group --NR.sub.4, andR.sub.3 and R.sub.4 mutually independently represent hydrogen or a C.sub.1-4 alkyl group; andA represents a C.sub.1-4 alkylidene group or a group --(CH.sub.2).sub.m --O--,wherem is a number from 2 to 6, andq is zero or 1 wherein the sum of the wt. % of components (A) and (B) is 100% and the sum of the pbw figures of components (a.1) and (a.

Abstract: Compatible polymer mixtures (polymer blends) comprised of polymers of a cyclopentyl (meth)acrylate and a styrene.

Abstract: The invention relates to polymer blends, which can be processed like a thermoplastic, whose bulk A) (50 to 90 wt. %) is polymethylmethacrylate or a polymethacrylate resin; and which also contain 5 to 40 wt. % of, as component B), a tough polymer, in particular an ABS polymerizate; and contain 5 to 40 wt. % of, as component C), a polycarbonate or a polyester carbonate. By adding component C), the heat resistance, impact strength and notched impact strength are improved in the known polymethacrylate/ABS blends. With the addition of an impact modifying component D), contained in quantities of 0 to 20 wt. % in the polymer blend, the impact strength and notched impact strength can be further raised. Preferably, recycled polymers can be added as the polymeric mix components.

Abstract: Thermoplastically processable polymer mixtures with high solvent resistance. The polymer mixtures are made up ofA) 2-98 wt. % of a polymer that is composed of at least 80 wt. % of monomer units of CH.sub.2 .dbd.CF.sub.2, andB) 98-2 wt. % of a polymer that consists of (.alpha.) 20-90 wt. % of monomer units of Formula I ##STR1## in which R stands for an alkyl group with 1 to 3 carbon atoms and X stands for a ##STR2## and of (.beta.) 80-10 wt. % of a chemically crosslinked polymer with a glass transition temperature below 0.degree. C., that is bonded to at least 5 wt. % of the polymer formed from the monomer of Formula (I).

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: Compatible polymer blends containing0.5-99.5 wt. %, preferably 50 to 90 wt. % of a polyphenylene ether, synthesized from units of formula (I) ##STR1## where R.sub.1 stands for an optionally substituted cycloalkyl group or alkoxyl group having 1 to 8 carbon atoms or an optionally substituted aryl group having 6 to 10 carbon atoms or for chlorine,where R.sub.2 stands for an optionally substituted cycloalkyl group or alkoxyl group having 1 to 8 carbon atoms or an optionally substituted aryl group having 6 to 10 carbon atoms or for chlorine, andB) 99.5-0.5 wt. %, preferably 50 to 10 wt. % of a polyaryl(meth)acrylate containing 20-100 wt. % of monomers of the formula (II) ##STR2## where R.sub.3 stands for hydrogen or methyl, Q stands for an alkylidene group having 1 to 6 carbon atoms or a group --(CH.sub.2).sub.m --O--, where m denotes a number from 2 to 6,x stands for zero or 1 andR.sub.