Abstract: A novel initiator which may be used to prepare a silyl-functional living cationic polymer is disclosed, said initiator having the formula ##STR1## wherein R is independently selected from the group consisting of alkyl groups having 1 to 10 carbon atoms and aryl groups having 6 to 10 carbon atoms, R' is a divalent aliphatic hydrocarbon group having at least 3 carbon atoms, X is halogen, Y is selected from the group consisting of halogen, alkoxy, acyloxy and hydroxyl groups and a is 1, 2 or 3.

Abstract: The novel acrylic ester, allyl ether and allyl carbonate of the present invention are characterized by having the structures represented by the following general formulae (I) to (IV): The above acrylic ester, allyl ether and allyl carbonate are used as a starting monomer which forms a polymer matrix for use in a polymeric solid electrolyte. The novel polymer of the present invention comprises structural units derived from at least one compound selected from a group of the compounds represented by the above general formulae (I) to (IV). The polymeric solid electrolyte comprising the above novel polymer as a polymer matrix exhibits high ionic conductivity and is chemically stable.

Abstract: A description is given of tetramethylpiperidine-containing copolymers comprising 1-100 mol % of identical or different monomer units of the general formula I ##STR1## (R.sup.1 =COOR.sup.7, COR.sup.8, CONR.sup.8 R.sup.9, CN; R.sup.2 =H, C.sub.1 -C.sub.12 -alkyl, COOR.sup.7, COR.sup.8, CONR.sup.8 R.sup.9, CN; R.sup.3 =H, methyl, ethyl, propyl; R.sup.6 =H, C.sub.1 -C.sub.8 -alkyl; R.sup.7 =H, C.sub.1 -C.sub.8 -alkyl, C.sub.5 -C.sub.8 -cycloalkyl, C.sub.3 -C.sub.5 -alkenyl, substituted or unsubstituted phenyl; R.sup.8 and R.sup.9 =H, C.sub.1 -C.sub.12 -alkyl, C.sub.5 -C.sub.8 -cycloalkyl, substituted or unsubstituted phenyl; X=oxygen, sulfur, NR.sup.6) and also other monomers, and also of processes for preparing the copolymers, of the use of the copolymers as stabilizers, including light stabilizers, and of organic material comprising the copolymers.

Abstract: This patent application relates to a composition capable of being applied to the skin and/or the mucosae, including a polymeric system which includes an aqueous dispersion of particles of film-forming polymer, the said polymeric system making it possible to obtain a supple and flexible film. The invention also relates to the use of such a polymeric system in such an, especially cosmetic, composition.

Abstract: Perfluoroelastomer compositions of improved processability are provided which have reduced levels of ionized or ionizable polymer endgroups.

Abstract: Macromonomers of the formula I are described:Q-B(L-B).sub.n T (I)wherein n is at least 1.0;Q is a polymerizable group;B may be the same or different and is a difunctional block of molecular weight in the range of from 100 to 4000 and wherein at least one B is a perfluorinated polyether of formula II;--OCH.sub.2 CF.sub.2 O(CF.sub.2 CF.sub.2 O).sub.x (CF.sub.2 O).sub.y CF.sub.2 CH.sub.2 O-- (II)wherein the CF.sub.2 CF.sub.2 O and CF.sub.2 O units may be randomly distributed or distributed as blocks throughout the chain and wherein x and y may be the same or different such that the molecular weight of the perfluorinated polyether is in the range of from 242 to 4,000;L is a difunctional linking group; andT is a terminal group.These macromonomers may be used in the production of contact lenses, corneal implants, cell growth substrate or medical implant.

Abstract: To provide a polymer comprising as a structural unit a monomer unit containing a hydroxy group or other hydrophilic radical and other functional group in the molecule which is useful in medical, cosmetic and electric industries.A polymer comprising as a structural unit a monomer unit shown by the general formfula [1] ##STR1## (wherein R.sup.1 and R.sup.2 are, independently, a hydrogen atom or a halogen atom, R.sup.3 is a hydrophilic radical and R.sup.4 is a cyano group or a carboxyl group which may he esterified).

Abstract: A cold-setting coating composition comprising: a fulorocopolymer comprising (a) a fluoroolefin monomer unit, (b) a (meth)acrylic ester monomer unit, (c) an organosilicon monomer unit represented by a specific formula, (d) other radically polymerizable monomer unit, proportions of said units (a), (b), (c) and (d) being 5 to 70 mole %, 20 to 80 mole %, 1 to 20 mole % and 0 to 30 mole %, respectively, based on the total mole of the units (a), (b), (c) and (d), and the fluoropolymer having a glass transition (Tg) of 15 to 60.degree. C. a curing catalyst; and an organic solvent. The cold-setting coating composition has excellent weather resistance and stain resistance.

Abstract: Wettable fibers or filaments are prepared from a composition having a polymer which has a wetting agent incorporated therein. The polymer is selected from the group consisting of olefin polymers, polyesters and polyamides. The wetting agent consists essentially of a glyceride selected from the group consisting of a mono-glyceride, a combination of mono-glycerides and a mixed glyceride having a mono glyceride content of at least 85 percent by weight. The fatty ester group or groups in the glyceride each have from about 12 to about 22 carbon atoms. The olefin polymer is preferably polypropylene, LLDPE, LDPE and HDPE, more preferably polypropylene. The polyamide is preferably a nylon 6 and nylon 6,6. The polyester is preferably a polyethylene terephthalate and a polybutylene terephthalate.

Abstract: The present invention therefore provides a new process for the preparation of low-viscosity fluorinated rubbers, in which at least one fluorine monomer is polymerized by free radicals in the presence of one or more compounds of the formula (I) or (II) ##STR1## wherein R.sup.1 represents a fluorine atom or a perfluoroalkyl radical having 1 to 4 carbon atoms and R.sup.2 represents a perfluoroalkyl radical having 1 to 4 carbon atoms and n=4 or 5, and, optionally, a molecular weight regulator.

Abstract: Disclosed is a method for preparing fluorinated emulsion polymers that reduces or eliminates the need for fluorinated surfactants comprising the steps of:a) providing a reaction mixture comprising water, surfactant, monomer mixture comprising at least one fluorinated monomer, at least one non-fluorinated monomer having high water solubility, and optionally at least one non-fluorinated monomer having low water solubility, macromolecular organic compound having a hydrophobic cavity; andb) polymerizing said monomer mixture.

Abstract: Water dispersible, hydrophilic, repulpable, water-activatable, acrylic polymers are provided. The polymers are non-tacky when dry, but become tacky when wet, and exhibit high peel strength on a variety of substrates. The polymers comprise an acrylic-based polymer prepared by emulsion polymerization of 40 to 70% by weight of one or more alkyl acrylates, the alkyl group of which has from 4 to 8 carbon atoms; 10 to 20% by weight of methacrylate; 2 to 15% by weight of vinyl acetate; and 10 to 25 percent by weight of methacrylic acid and/or acrylic acid; and a positive amount up to about 30% by weight of methyl methacrylate. Some embodiments also include a short chain hydroxyalkyl methacrylate. Also provided are ink jet-imprintable, water-activatable constructions comprising a layer of water-activatable polymer, coated on a release liner or other surface. Optionally, a water-resistant transparent film layer is disposed between the polymer and release liner or used in place of the release liner.

Abstract: A redoxcatalyst system capable of being used for free-radical emulsion polymerization of ethylenically unsaturated compounds, comprising at least one oxidizing agent and at least one reducing agent, said reducing agent comprising an at least bifunctional aldehyde having at least 3 carbon atoms which is completely masked as a bisulfite adduct.

Abstract: A fluoroelastomer comprising 2 to 8% by mole of tetrafluoroethylene, 14 to 25% by mole of perfluoro(alkyl vinyl ether) and 70 to 85% by mole of vinylidene fluoride, sum total being 100% by mole, obtained by copolymerization in the presence of a bromine-containing monomer compound and an iodine and bromine-containing compound, has distinguished low temperature characteristics, solvent resistance and chemical resistance by itself.

Abstract: A thermoplastic resin composition includes a rubber modified thermoplastic resin and from 2 parts by weight to 20 parts by weight of a fluoropolymer, based on 100 parts by weight of the resin composition, imparts a high tensile modulus, ductility and a low friction surface to articles molded therefrom.

Abstract: Ethylene fluoro-containing copolymers of the ECTFE and ETFE type, optionally in the presence of a third comonomer in amount comprised between 0.1 and 10% by moles, having a viscosity between 10.sup.2 and 10.sup.5 Pa.sec with shear rates of 1 sec.sup.-1 measured at the temperature of about 30.degree. C. higher than the second melting temperature, and having a rheologic curve in the diagram shear viscosity/shear-rate with a slope higher than 200, calculated as ratio between the viscosity in Pa.sec and the shear-rate in sec.sup.-1 in the shear-rate range comprised between 1 and 10 sec.sup.-1, and having a processability zone with shear-rate values higher than 10 s.sup.-1.

Abstract: A fluorine-containing copolymer comprising (a) polymer units based on a fluoroolefin, (b) polymer units based on a cyclic monomer having, on its ring, an unsaturated group copolymerizable with the fluoroolefin, (c) polymer units based on an ethylenically unsaturated compound having a curable moiety but having neither an ester bond nor an ether bond, and optionally (d) polymer units based on at least one olefin selected from ethylene, propylene and isobutylene, or polymer units based on a vinyl ether having an aliphatic ring, in such proportions that, based on the total amount of polymer units (a), (b), (c) and (d), polymer units (a) are from 35 to 65 mol %, polymer units (b) are from 5 to 45 mol %, polymer units (c) are from 1 to 30 mol % and polymer units (d) are from 0 to 40 mol %, which has a number average molecular weight within a range of from 2,000 to 100,000, as calculated as polystyrene by gel permeation chromatograph, and which has rings based on said cyclic monomer, on the main chain of the copolym

Abstract: A macromer of formula (I) is described: Q-(PFPE-L).sub.n-1 -PFPE-Q, wherein n>1.0; PFPE may be the same or different and is a perfluorinated polyether of formula (II): --OCH.sub.2 CF.sub.2 O(CF.sub.2 CF.sub.2 O).sub.x (CF.sub.2 O).sub.y CF.sub.2 CH.sub.2 O--, wherein the CF.sub.2 CF.sub.2 O and CF.sub.2 O units may be randomly distributed or distributed as blocks throughout the chain and wherein x and y may be the same or different such that the molecular weight of the PFPE is in the range of from 242 to 4,000; L is a difunctional linking group; and Q may be the same or different and is a polymerizable group. The macromer may be used preferably in the production of contact lenses.

Abstract: Curable perfluoroelastomer compositions are prepared in the presence of an initiator system comprising a mixture of a persulfate salt and a reducing agent wherein the amount of reducing agent present is no more than 20 mole percent of the total initiator system. The perfluoroelastomer is isolated and decarboxylated, thereby providing a product having excellent processability.

Abstract: An ethylene/polyalkyleneglycol(ether) (meth)acrylic ester copolymer and a nonporous breathable film obtained therefrom are provided, the polymer comprising the following monomer units:(i) from 99 to 50% by weight ethylene;(ii) from 1 to 50% by weight of a monomer of formula ICH.sub.2 .dbd.C(R.sub.1)--COO--?C.sub.m H.sub.2m --O!.sub.n --H(I)in which R1 is H or CH.sub.3, m is 2, 3 or 4; n is comprised between 2 and 25; and(iii) from 0 to 20% by weight of a third monomer;said copolymer having a mean molecular weight comprised between 5,000 and 65,000.