Rohm Gmbh

Rohm Gmbh Chemische Fabrik

Horst Dinklage

Herbert Fink

Werner Siol

Hubert Rauch

Klaus Huebner

Hans Ottofrickenstein

Hans-Peter Wolf

Norbert Suetterlin

Klaus Langerbeins

Willi Tilch

Karl-Josef Folsch

Peter Frank

A method for making a fabric coated with acrylic resin and adaptable to use as a wrap for food products such as cheese or sausage, which comprises embedding a textile material of relatively low strength, such as a knitted fabric, scrim, or lightweight nonwoven fabric, in a coating layer of acrylic resin having thermoplastic properties, and for making a food wrap by cutting a blank therefor from such coated fabric, which blank is shaped into a wrap by heat sealing; fabrics and wraps made by such a method.

Resin coated fabric for foodstuff casings

Polyvinyl chloride surfaces receive a well-adhering, water and ethanol resistant coating with good plasticizer sealing effect by varnishing with an aqueous dispersion of (meth)acrylate polymers that are synthesized from 10 to 90% by weight acrylic and/or methacrylic acid alkyl or cycloalkyl esters with 1 to 10 carbon atoms in the ester group, 90 to 10% by weight acrylic and/or methacrylic acid esters with aromatic groups constituting or contained in the ester group, and small quantities of other monomers. The copolymers are preferably emulsion polymerized and may be synthesized as multiple-phase polymers according to the core-shell model.

Aqueous polyacrylate dispersion for coatings

What is disclosed is a two-layered packaging material for the direct contact packing of food products, said material comprising cloth coated with a first acrylate emulsion polymer, formulated to be soft, comprising:

Two-layered packaging material for foodstuffs one layer of which

What are disclosed are a method for making an emulsion polymer by polymerizing water insoluble free-radically polymerizable monomers, or monomer mixtures predominantly comprising such monomers, by emulsion polymerization in the presence of a polymerization initiator which is soluble in organic solvents and has at least limited solubility in water, and in the further presence of a free non-polymerizable emulsifying acid, also soluble in organic solvents, and the conversion of such an emulsion polymer by spray drying into a polymer powder which is completely soluble in organic solvents to form clear solutions from which polymer films of reduced water sensitivity can be formed.

Method of making emulsion polymers

What are disclosed are methods for making an aqueous dispersion of a synthetic resin copolymer, said dispersion having high pigment binding capacity and adaptable to use in the preparation of printing inks or pastes, said copolymer comprising a predominant amount of water insoluble monomers together with from 3 to 8 percent by weight of an acid component which is a water soluble acid or salt, which method comprises gradually adding said water insoluble monomers, together with a portion of said acid component, to an aqueous medium containing the balance of the acid component in the form of a dissolved water soluble salt; aqueous synthetic resin dispersions made by these methods; and printing inks comprising such an aqueous synthetic resin dispersion which has been neutralized and combined with such an amount of an organic solvent as converts the dispersion into a solution or colloidal dispersion of the synthetic resin.

Resin dispersions having high pigment binding capacity

What is disclosed are aqueous dispersions of a hydrophilic copolymer prepared by polymerizing, in an aqueous medium, a monomer mixture comprising a member selected from the group consisting of lower alkyl acrylates and methacrylates, a compound of the formula ##STR1## wherein R is hydrogen or methyl, R.sup.1 is hydrogen or alkyl having 1 to 4 carbon atoms. Y is oxygen or --NR.sup.2 --, R.sup.2 is hydrogen or alkyl having 1 to 4 carbon atoms, and n is an integer from 1 to 25, up to 8 percent, by weight of the copolymer, of a member selected from the group consisting of copolymerizable carboxylic acids and salts of such acids, and at least one monomer capable of crosslinking said copolymer, as well as methods for making said dispersions and using them to impart a hydrophilic finish to fibers and fabrics.

Method of finishing fibers or fabrics with dispersions of hydrophilic

What is disclosed is a synthetic resin powder of latex particles having an average particle size between 1 micron and 5 microns, which particles can be partially or completely loosely aggregated to form larger particles, said synthetic resin being a cross-linked copolymer of 75 to 99.5 percent by weight of a monomer mixture of methyl methacrylate and isobutyl methacrylate in a weight ratio of 1:3 to 3:1, 0.5 to 10 percent by weight of a cross-linking comonomer having at least two polymerizable double bonds, and 0 to 24.5 percent by weight of a further different ethylenically-unsaturated comonomer copolymerizable therewith, a coating agent containing a binder dissolved or dispersed therein together with such a resin powder, and a method of coating using such a coating agent to give coatings wherein the presence of the resin powder prevents blocking of the coatings without undue loss of luster therein.

Synthetic resin powder and coating agents containing the same

Aqueous dispersions of copolymers of (1) acrylic or methacrylic acid esters, (2) derivatives of acrylic acid or methacrylic acid having the general formula ##STR1## wherein Y is oxygen or a --NR'-- group where R' is hydrogen or alkyl having 1-4 carbon atoms, R is hydrogen or methyl, R' is hydrogen or alkyl having 1-4 carbon atoms, and n is an integer from 1 to 25, (3) one or more polymerizable carboxylic acids and/or the salts thereof, and (4) one or more monomers capable of crosslinking the polymer chains. These copolymers are highly water absorbent, and alkali-resistant, and applied as dispersions are well suited for providing a hydrophilic finish to textile fibers and to textiles and non-wovens.

Growing community of inventors

Dieburg, Germany

Horst Dinklage