Rohm Gmbh Chemische Fabrik

Rohm Gmbh

Roehm Gmbh Chemische Fabrik

Jens-Dieter Fischer

Werner Siol

Ulrich Terbrack

Klaus Koralewski

Thomas Rhein

Thomas Sufke

Manfred Munzer

Erwin Felger

Klaus Frank

Heinz Vetter

Werner Hoess

Uwe Numrich

Heinz Gross

Winfried Wunderlich

Hartmut Schikowsky

Rudolf Blass

Manfred Stickler

Ursula Golchert

Felix Schinzel

Compatible polymer blends containing A) 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 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, and B) 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,

Compatible polymer blends

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.

High impact strength polymer blends

Miscible blends of polyphenylene ether and polyaryl (meth)acrylate

The invention relates to compatible PM polymer blends with polyesters as mix components, which comprise

Compatible polymeric mixtures

The invention relates to a coated substrate comprising:

Polyester-polycarbonate substrate coated with UV protecting layer

The invention relates to ternary polymer alloys comprised of thermoplastic polymers which alloys are comprised of the following components:

Ternary polymer mixtures

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.

Thermoplastic moulding composition comprising a polymer blend based on

A composition universally usable as an impact modifier for synthetic resins comprising

Impact modified synthetic resins

Polymer blends

Homogeneous polymer mixtures of polymethacrylimides consist of a component (A), composed of from 30 to 90 percent by weight of methacrylalkylimide units and from 3.5 to 10 percent by weight of methacrylic acid units, and of a component (B1) or (B2) having from 10 to 50 percent by weight more methacrylalkylimide units than component (A), component (B1) having a degree of imidization of less than 95 percent and containing from 3.5 to 10 percent by weight of methacrylic acid units, and component (B2) having a degree of imidization greater than 95 percent and containing less than 3.5 percent by weight of methacrylic acid units.

Homogeneous mixture of polymethacrylimide polymers

Multi-layer plastic elements containing a polycarbonate core, with a polymethacrylate layer containing a UV absorber, and modified to be impact-resistant, applied to the core, where the polymethacrylate plastic layer is composed of methacrylate copolymers, which form compatible mixtures with polycarbonate, especially the polycarbonate of bisphenol A, exhibit good adhesion between the polycarbonate and the polymethacrylate. The methacrylate copolymers are methyl methacrylate copolymers with (meth)acrylic monomers which contain carbocyclic substituents in the ester group. The protective layer containing UV absorber is applied to the polycarbonate plastic in thickness from 1 to 500 .mu.m by coextrusion or by lacquering.

Impact-resistant methacrylate protective layer for polycarbonate,

Multilayered plastic objects are prepared having a core layer of an aromatic polycarbonate in contact with a polymethacrylate film containing a UV absorber. The polymethacrylate film comprises a copolymer of methylmethacrylate and an acrylic or methacrylic ester, (meth)acrylamide, maleimide or mixtures thereof and is compatible with said aromatic polycarbonate at all mixing ratios.

Methacrylate protective coating containing a UV-absorber for

An impact resistance modifier for polycarbonate, which is a copolymer, comprising an elastomer and a methyl methacrylate copolymer, which are bonded covalently. The methyl methacrylate copolymer is one that is compatible by itself with polycarbonate resin due to specific comonomers. Such comonomers are aromatic (meth)acrylic esters and (meth)acrylamides, cycloalkyl(meth)acrylamides and cycloalkylmaleimides. Thermoplastic molding compounds comprising polycarbonate and the new impact resistance modifier exhibit excellent impact resistance.

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Bickenbach, Germany

Jens-Dieter Fischer