Abstract: This invention relates to new, hydrophilic, fabric softener foam compositions having improved release ability of the fabric softener abetted by the addition of a hydrophilic polyether polyol release agent to the aqueous reactant containing the fabric softener prior to reacting the aqueous reactant with a hydrophilic, isocyanate-terminated prepolymer to form the foam.
Abstract: This invention is directed to dual UV and heat activated compositions comprising(1) a liquid, ethylenically unsaturated monomer, oligomer or prepolymer of the formula: ##STR1## wherein R is H or CH.sub.3, R.sub.1 is an organic moiety and n is 2 to 4, hereinafter referred to as the ethylenically unsaturated compound,(2) a photoinitiator, and(3) a substituted or unsubstituted pinacolThe exposure to UV radiation and heat in seriatim or simultaneously results in a cured solid product which can be utilized as coatings, gaskets, sealants, resists and the like.
Abstract: This invention relates to a screen printable, opaque legend ink composition curable on exposure to radiation, e.g., UV radiation in the presence of a photoinitiator or high energy ionizing radiation comprising(a) 15 to 40% by weight of an allyl terminated polyene which is the reaction product of an epoxide and an unsaturated amine,(b) 5 to 25% by weight of a cocurable allyl terminated polyene having a molecular weight of less than 500 selected from the group consisting of diallyl phthalate, triallyl isocyanurate, diallyl adipate, diallyl azelate, diallyl sebacate, diallyl itaconate, diallyl maleate, diallyl chlorendate, diallyl malate and triallyl cyanurate,(c) 15 to 45% by weight of a polythiol having a molecular weight in the range from about 94 to 20,000 of the general formula: R.sub.8 --(SH).sub.n wherein R.sub.8 is a polyvalent organic moiety free from reactive carbon-to-carbon unsaturation and n is at least 2 and(d) a pigment member of the group consisting of 0.5 to 25% by weight of zinc sulfide and 0.
Type:
Grant
Filed:
February 12, 1980
Date of Patent:
July 28, 1981
Assignee:
W. R. Grace & Co.
Inventors:
Richard W. Bush, Russell J. Jenkins, John E. Rie
Abstract: The invention disclosed is for novel polyols and a method of making said polyols which comprises interconnecting polyols with epihalohydrin in the presence of substantially an equimolar amount of base based on the epihalohydrin thereby forming an extended polyol with terminal hydroxyl groups and at least one hydroxyl group attached directly to the backbone chain internally. These resultant polyols can be used to make polyurethane foams having high resiliency.
Abstract: A cell for coating enamel onto wire, including radiation curable polymers (RCP), which accomodates a plurality of wires simultaneously. The wires are first subjected to vacuum degassing, and then pass through a single seal plate into a pressurized enamel chamber which assures a concentric coating of enamel onto the wire as it exits through a die plate having a separate cavity for each wire. Floating seals are provided at the entrance of the wire into the cell. The coated wire is then radiation cured conventionally.
Type:
Grant
Filed:
September 20, 1979
Date of Patent:
March 31, 1981
Assignee:
W. R. Grace & Co.
Inventors:
Harold A. Kloczewski, Cheryl N. Schaeffer
Abstract: This invention relates to the preparation of a flexible, open cell polyurethane foam which can be rigidized by incorporating an epoxy resin into the mixture prior to foaming and, after forming a flexible foam, adding an epoxy curing agent thereto to cause the epoxy resin to cure thereby rigidizing the previously flexible foam. The flexible foam can be reshaped prior to rigidizing if desired.
Abstract: A method of forming an aqueous dispersion of alpha alumina monohydrate by subjecting a mixture of water and alpha alumina monohydrate to high shear rates. The process is further enhanced by having the mixture contain a small amount of a base selected from a water soluble alkali metal hydroxide, carbonate or oxide. The invention is also directed to a water dispersable alpha alumina monohydrate composition comprising solid particulate alpha alumina monohydrate having from 1 to 5% by weight of an alkali metal oxide, hydroxide or carbonate or ammonium hydroxide substantially uniformly mixed therewith.
Abstract: A plant growth media in the form of a gel which is useful for growing plants in the form of seeds, seedlings, cuttings, nursery stock, etc., is obtained by dissolving a water-soluble polyisocyanate capped prepolymer containing said growing plant in an aqueous medium optionally containing various plant growth additives such as fertilizer, agricultural modified minerals and the like. The media can be formed in a variety of shapes.
Abstract: Water-based, clay-free drilling fluids for use in drilling bore holes into subterranean formations having an aqueous mixture therein comprising water and an aluminum hydroxide agent. The aqueous phase of the drilling fluids has the aluminum hydroxide agent therein in an amount sufficient to impart non-Newtonian, pseudoplastic properties to the fluids when the fluids have a pH of at least about 8. The present invention further relates to an improved process of drilling bore holes into subterranean formations using the subject drilling fluids.
Abstract: Stable and storable solid compositions which are capable of readily dispersing in an aqueous medium and causing the formed aqueous system to exhibit a high degree of pseudoplasticity. The solid composition comprises a mixture of particulate alkali metal aluminate and a solid, water soluble zinc, iron or aluminum metal salt of an inorganic mineral acid selected from halogen or nitric acid. The aluminate and metal salt should be present in a ratio such that the composition is capable of forming an aqueous system having an alkaline pH of at least 8.
Abstract: This invention relates to heat stable, non-yellowing photopolymer compositions comprising a polythiol, a photoinitiator and a polyene of the formula: ##STR1## wherein R are all the same member of the group consisting of ##STR2## R.sub.1 is --CH.sub.3 or R, and R' is --CH.sub.3 or H. The UV cured coating resulting from this composition are non-yellowing even after baking for 15 minutes at 450.degree. F.
Abstract: A battery separator, and a method of forming the same, which exhibits good electrical conductivity and a high degree of inhibition to dendrite formation, is in the form of a thin sheet formed from a substantially uniform mixture of a thermoplastic rubber and a filler in a volume ratio of from about 1:0.15 to 1:0.6. The thermoplastic rubber is preferably a styrene/elastomer/styrene block copolymer.
Type:
Grant
Filed:
May 10, 1979
Date of Patent:
September 23, 1980
Assignee:
W. R. Grace & Co.
Inventors:
Stewart C. Feinberg, Christian B. Lundsager, Joseph T. Lundquist, Jr., Robert A. Balouskus
Abstract: An applicator suitable for one-man application of sheet material in an accurate manner onto structural substrates wherein the applicator can direct changes in the path of application while readily maintaining control over the roll of sheet material.
Abstract: A method of preparing a preformed sheet-like waterproofing material in the form of a laminate structure of a sheet-like flexible support member having on one side thereof a flexible membrane of an adhesive bituminous composition. The method requires placing the flexible sheet-like polymeric support member in facing relationship with a forming surface, applying a coating of an adhesive bituminous composition having a temperature above the melting point of the polymeric support member to the opposite surface of the support and simultaneously cooling the forming surface at a rate at least sufficient to maintain the support member thereon below its melting point for a time at least sufficient to permit the bituminous composition to cool below the melting point of the support member. The present method alleviates the utilization of a non-structural release sheet during formation or packaging of the waterproofing composite structure.
Abstract: This invention relates to urethane forming compositions and a method of forming polyurethanes having low residual potentially carcinogenic aromatic amines by adding scavengers from the group comprising cyclohexyl monoisothiocyanate and hindered aliphatic monoisocyanates of the general formula: ##STR1## wherein R.sub.1 - R.sub.7 are H, alkyl, cycloalkyl, aryl, alkaryl, aralkyl or mixtures thereof and x is 1 to 7.
Type:
Grant
Filed:
November 20, 1978
Date of Patent:
July 8, 1980
Assignee:
W. R. Grace & Co.
Inventors:
Clifton L. Kehr, Louis L. Wood, James L. Guthrie
Abstract: The present invention relates to a method of forming paper webs having high wet strength and water absorbency by impregnating cellulose fibrous material with an aqueous composition made from a mixture of copolymers comprising an effective amount of (A) a hydrolyzed product of a copolymer having the general formula: ##STR1## wherein R, R', R", and R'" are each of C.sub.1 -C.sub.4 alkyl group; A is a quarternary ammonium anion; y has a value of 0 to 1; and a is an integer and b and c are each integers including zero such that the ratio of a to b plus c is from about 2:1 to 1:2 and (B) a reaction product of a secondary alkylamine with a primary amine and with an epihalohydrin.
Abstract: A water-reducing admixture for use in hydraulic cement compositions comprising about 25 parts by weight of a lignosulfonic acid salt, from about 6 to 16 parts of calcium formate; and from about 2 to 8 parts of monosaccharides.
Abstract: The invention disclosed relates to hydrophilic polyurethane foam which exhibits improved tensile and tear properties and reduced shrinkage upon drying as a result of incorporation of substantially hydrophilic reinforcing fibers formed from homopolymers and copolymers of polyvinyl alcohol. The reinforced foams also exhibit reduced swelling upon contact with water.
Type:
Grant
Filed:
November 24, 1978
Date of Patent:
May 6, 1980
Assignee:
W. R. Grace & Co.
Inventors:
Clifton L. Kehr, Louis L. Wood, Nelson S. Marans, Glenn E. Fulmer
Abstract: This invention relates to a process for preparing a catalytic solution of a sulfonium salt of a complex anion, capable of yielding a Lewis Acid when irradiated by UV or high energy ionizing radiation comprising reacting a sulfonium halide with an alkali metal salt of the complex anion in a solvent mixture containing a polyol having at least two hydroxy groups and a lactone.
Abstract: A novel preformed, sheet-like, flexible material suitable for waterproofing or substructural surfaces, the sheet-like material having a laminate structure of (1) a waterproof and waterproofing pressure-sensitive adhesive membrane having a surface of predetermined width extending from edge to edge of said membrane; and (2) a support covering said entire predetermined width of said surface, said support comprising (a) a major flexible support sheet superimposed on a major portion of said surface, and (b) at least one minor support sheet, each of said at least one minor support sheets extending from one of said edges toward the major support sheet. The flexible polymeric support covering the major portion of the membrane's covered surface has its free face substantially non-adherent to the composition of the waterproofing adhesive membrane.