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| Number | Title | Issue Date |
| 5874521 | Polymer ahoy material and process for production thereof A reactive, powdered polymeric material, the polymeric material comprising polymer particles (i) having an average particle size less than about 1000 μm; (ii) which are made up of a plurality of smaller particles; and (iii) having energy stored therein. ... | 02/23/1999 |
| 5124363 | Aqueous air foams of polyhydroxy polymer A method of treating hazardous material or other substrate with an aqueous air foam, comprising the steps of (1) preparing an aqueous solution or dispersion comprising (a) water-soluble polyhydroxy polymer having a plurality of hydrogen-bondable 1,2- and/... | 06/23/1992 |
| 5026735 | Treatment of hazardous materials with aqueous air foam of polyhydroxy polymer A method of treating hazardous material or other substrate with an aqueous air foam, comprising the steps of (1) preparing an aqueous solution or dispersion comprising (a) water-soluble polyhydroxy polymer having a plurality of hydrogen-bondable 1,2- and/... | 06/25/1991 |
| 4962133 | Method of making highly adsorptive copolymers A precipitation polymerization process for the production of a macroporous cross-linked copolymer in which there is added to a reactor equipped with a stirrer, at least one monounsaturated monomer and at least one polyunsaturated monomer, dissolving an in... | 10/09/1990 |
| 4676939 | Process for the production of expanded particles of a polypropylene resin A process for the production of expanded particles, which comprises providing an aqueous dispersion containing expandable particles which are formed of a polypropylene resin and which contain a blowing agent and an expansion aid and maintained at a temper... | 06/30/1987 |
| 4603151 | Spherical polyvinyl chloride particles Polyvinyl chloride resin in particulate form characterized by said resin particles being spherical in shape and said resin having low amounts of glassy content. Extrudates, such as pipe, formed from the novel resin of this invention have high impact stren... | 07/29/1986 |
| 4471077 | Microporous polylactide powders and a process for their preparation Microporous polylactide powders having an intrinsic isotropic structure being spherical in a shape and containing interconnecting hollow spaces or openings i.e., micropores are obtained by the steps of heating a polylactide in xylene until substantially c... | 09/11/1984 |
| 4174430 | Process for producing porous polystyrene gel A porous polystyrene gel is produced by a suspension polymerization in an aqueous system under an incorporation of more than 5 mole % of a radical polymerization catalyst to a total amount of styrene and divinyl benzene with an inert organic solvent.... | 11/13/1979 |
| 4073733 | PVA membrane and method for preparing the same A polyvinyl alcohol semi-permeable membrane is prepared which has micropores with an average diameter of 0.02 to 2 microns as defined by the interpore partition walls having thicknesses in the range of 50 to 5000 A and which is characterized by substantia... | 02/14/1978 |
| 4053456 | Poly(aryloxyphosphazene) copolymers Poly(aryloxyphosphazene) copolymers and foams thereof having a significant portion of C1 - C4 alkoxyphenoxy groups are described. The copolymers consist of the units which occur in a nonregular fashion and are represented by the foll... | 10/11/1977 |
| 4040990 | Partially pyrolyzed macroporous polymer particles having multimodal pore distribution with macropores ranging from 50-100,000 angstroms Partially pyrolyzed particles of macroporous resinous polymer have improved structural stability and utility. Pyrolyzed preformed beads are useful as adsorbents in both gaseous and liquid media to remove impurities such as vinylchloride monomer from gases... | 08/09/1977 |
| 4007142 | Amine resin and process As new compositions, retiporous amine resin granules of at least 10% pore volume, the pores having a minimum average diameter of about 0.1 micron. A process of preparing the granules from a dispersion of a hardenable amine syrup and their use in paints, p... | 02/08/1977 |
| 3985632 | Small, porous polyacrylate beads Uniformly-shaped, porous, round beads are prepared by the co-polymerization of an acrylic monomer and a cross-linking agent in the presence of 0.05 to 5% by weight of an aqueous soluble polymer such as polyethylene oxide. Cross-linking proceeds at high te... | 10/12/1976 |
| 3985540 | Metal complexes of hydroxyquinoline and polymeric porous granules Metal complexes of 8-hydroxyquinoline and polymeric water-insoluble but water-swellable cross-linked N-vinyllactam or N-alkyl-N-vinylamide polymers in the form of porous beads or granules and a process for preparing same. Such complexes are particularly s... | 10/12/1976 |
| 3960786 | Process for preparing granular porous silicone rubbers Granular porous silicone rubbers suitable to form articles to be embedded in human bodies or to be used to make up lost portions thereof are prepared by forming a composition containing a siloxnediole composition expressed by a formula ##EQU1## ... | 06/01/1976 |
| 3959190 | Insoluble oxidation reagent A polymeric sulfide oxidation reagent comprising a cross-linked polymeric resin carrying a plurality of lower alkyl sulfide groups, its preparation and its use as a co-reactant for the oxidation of primary and secondary alcohols are disclosed.... | 05/25/1976 |
| 3957741 | Crosslinked, porous, polyacrylate beads Uniformly-shaped, porous, round beads are prepared by the co-polymerization of an acrylic monomer and a cross-linking agent in the presence of 0.05 to 5% by weight of an aqueous soluble polymer such as polyethylene oxide. Cross-linking proceeds at high te... | 05/18/1976 |
| 3954682 | Insoluble porous polymeric-phenolic complexes Phenolic complexes of water-insoluble but water-swellable crosslinked N-vinyllactam or N-alkyl-N-vinylamide polymers in the form of porous beads or granules and a process of preparing same. The complexes are particularly suited for use in situations where... | 05/04/1976 |
