Process for the preparation of paper coating compositions
    1.
    发明授权
    Process for the preparation of paper coating compositions 失效
    制备涂料组合物的方法

    公开(公告)号:US3812072A

    公开(公告)日:1974-05-21

    申请号:US22631172

    申请日:1972-02-14

    Applicant: HOECHST AG

    CPC classification number: D21H19/62 D21H19/60

    Abstract: IN PAPER COATING COMPOSITIONS, SYNTHETIC RESIN DISPERSIONS OF THE BASIS OF VINYL ACETATE/ETHYLENE COPOLYMERS WHICH MAY CONTAIN A MINOR PROPORTION OF FURTHER COMONOMERS, SUCH AS ACRYLIC ACID ESTERS OR AMIDES, DIENES, CROSSLINKING AGENTS, CAN BE COMBINED WITH WATER-SOLUBLE BINDERS, SUCH AS STARCH, CASEIN, AND POLYVINYL ALCOHOL. THIS IS ACHIEVED BY ADDING TO THE DISPERSIONS AFTER THE POLYMERIZATION, OR TO ANY ONE OF THE COMPONENTS OF THE COATING COMPOSITION IN THE COURSE OF ITS PREPARATION, A NON-IONIC WETTING AGENT WHICH IS A POLYETHYLENE OXIDE OR A POLYPROPYLENE OXIDE, OR BLOCK COPOLYMER OF ETHYLENE OXIDE AND PROPYLENE OXIDE, OR AN OXETHYLATED ALKYL PHENOL OR ALCOHOL OR ACID, OR A GRAFT POLYMER OF VINYL ACETATE AND CERTAIN OTHER MONOMERS ON POLYETHYLENE OXIDE. THE RESULTING COATING COMPOSITIONS EXHIBIT A HIGH PIGMENT CONTENT AT A RELATIVELY LOW VISCOSITY.

    4.
    发明专利
    未知

    公开(公告)号:DK137811B

    公开(公告)日:1978-05-08

    申请号:DK69472

    申请日:1972-02-15

    Applicant: HOECHST AG

    Abstract: 1357281 Ethylene-vinyl acetate copolymer coating compositions FARBWERKE HOECHST AG 15 Feb 1972 [16 Feb 1971] 6945/72 Headings C3G and C3P Aqueous coating compositions comprise (1) a mineral pigment, (2) a pigment dispersing substance, (3) a binder comprising an aqueous dispersion of a copolymer of ethylene, vinyl acetate and optionally one or more other monomers, and (4) 2 to 20 weight per cent based on the solids content of the copolymer dispersion of a graft polymer of a vinyl ester or vinyl ester and an unsaturated carboxylic acid on a polyalkylene oxide. The binder may also comprise conventional water-soluble binders such as casein, starch and polyvinyl alcohol. The pigment may be china clay, calcium carbonate, barium sulphate, titanium dioxide or satin white. The pigment dispersing agent may be a polyacrylic acid salt or polyphosphate. Examples describe the preparation of paper coating compositions comprising china clay; sodium salt of polyacrylic acid; -ethylene/vinyl acetate, ethylene/vinyl chloride/vinyl acetate or ethylene/vinyl pivalate/vinyl acetate copolymer dispersion; starch, casein or polyvinyl alcohol; and graft polymers of vinyl acetate or vinyl acetate and acrylic acid on polyethylene glycols.

    5.
    发明专利
    未知

    公开(公告)号:DK135543C

    公开(公告)日:1977-10-24

    申请号:DK510470

    申请日:1970-10-07

    Applicant: HOECHST AG

    Abstract: 1284815 Vinyl alcohol/maleic acid copolymer salt compositions KNAPSACK AG 16 Sept 1970 [8 Oct 1969] 44267/70 Heading C3P [Also in Division C5] Detergent and cleaning agents based on anionactive and/or non-ionic tensides and optionally further addends, the agents containing watersoluble salts of copolymers of vinyl alcohol with maleic acid as a builder. Preferred copolymer salts have the formula in which m is the maleic acid salt fraction in the copolymer, of at most 55 mol. per cent, Me stands for an alkali metal or ammonium ion and n is a whole number within a range of which the lower limit is 3 and of which the upper limit is defined by the solubility of the polymer in water. In the examples the agents contain the sodium salt of a vinyl alcohol/maleic acid copolymer, an alkylaryl sulphonate, non-ionic polyoxypropylene glycol, sodium silicate, magnesium silicate, soap, sodium perborate and carboxymethyl cellulose.

    7.
    发明专利
    未知

    公开(公告)号:SE318267B

    公开(公告)日:1969-12-08

    申请号:SE842365

    申请日:1965-06-24

    Applicant: HOECHST AG

    Abstract: Telomers are prepared by a process which comprises reacting allyl acetoacetate and at least one olefinically unsaturated comonomer in the presence of 0.5 to 10% by weight of the monomers of at least one radical-liberating compound as catalyst and at least one chain-transferring solvent at a temperature of at least 80 DEG C. Specified comonomers are vinyl acetate, propionate and isobutyrate, C1- 6 alkyl acrylates, methacrylates, maleates and fumarates, styrene, ethylene, butadiene, vinyl chloride and vinylidene chloride. Specified radical-liberating compounds are di t. butyl peroxide, dilauroyl peroxide, dibenzoyl peroxide, cumene hydroperoxide, t. butyl hydroperoxide and azobisisobutyronitrile. Specified chain-transfer solvents are halohydrocarbons, aliphatic hydrocarbons containing a tertiary carbon, primary and secondary aliphatic alcohols, ketones and substituted aromatic hydrocarbons wherein aliphatic substituents contain at least one labile hydrogen atom. In a preferred process the monomers and solvent are heated and a solution of radical initiator is continuously added thereto. In examples allyl acetoacetate is telomerized with (1) vinyl isobutyrate, (2) vinyl acetate, (3) vinyl acetate and vinyl isobutyrate, (4) methyl methacrylate and (7) ethylene in the presence of cumene and di-t. butyl peroxide; with vinyl isobutyrate in the presence of di-t. butyl peroxide and (5) toluene and (6) acetone; with (8) vinyl propionate in the presence of di-t. butyl peroxide and isopropanol; with (9) vinyl acetate, (10) vinyl isobutyrate, (11) vinyl chloride and (13) vinyl chloride and vinylidene chloride in the presence of methylene chloride and azobisisobutyronitrile; and with (12) vinyl chloride in the presence of chloroform and azobisisobutyronitrile The products are said to be non-cross linked telomers of molecular weight 500 to 5,000.

    8.
    发明专利
    未知

    公开(公告)号:SE302686B

    公开(公告)日:1968-07-29

    申请号:SE942565

    申请日:1965-07-16

    Applicant: HOECHST AG

    Abstract: Foaming and hardening epoxy resins under the action of a carbamate of at least one primary or secondary polyamine optionally in admixture with at least one primary or secondary polyamine as additional hardener. Foaming is achieved by thermal decomposition of the carbamate in the temperature range 20-200 DEG C. to give carbon dioxide and the free polyamine. Polyepoxy compounds based on specified mono-nuclear phenols containing two hydroxyl groups, multi-nuclear phenols or bis-phenols, aliphatic poly-epoxides of diols or polyols and their high molecular weight reaction products with ethylene oxide and/or propylene oxide may be used. In particular epichlorhydrin derivatives of mono-nuclear dihydric phenols, bis-phenols such as 2,2-di-(p-hydroxyphenyl) propane, aliphatic diols or aliphatic polyols such as glycerol are specified. The preferred carbamates are compounds of the formula wherein R is a straight or branched chain aliphatic, cycloaliphatic, aromatic or araliphatic radical and n is an integer from 0 to 30, compounds of the formula wherein R1 and R2 have the same significance as R above, R3 is branched or unbranched saturated or unsaturated aliphatic, cycloaliphatic or araliphatic and n is an integer in the range 0 to 10 as well as carbamates obtained by the action of carbon dioxide on specified aliphatic or cycloaliphatic primary, secondary or primary-secondary polyamines, aromatic diamines and di-(aminophenyl)alkanes. The free polyamines corresponding to the above-mentioned carbamates can also be present as the additional hardening agents. Specified surface active agents such as polysiloxanes or polyepoxides may be incorporated and, if desired, a filler, a dyestuff, a plasticizer, a fire-retarding agent or a mixture of any two or more of these substances may be present. The foamed products may find application in thermal, acoustic or electrical insulation. Carbamates of the first general formula above, which are soluble in amines and polyepoxide resins, are obtained by treating acrylonitrile with the appropriate specified di- or poly-ol and reacting the hydrogenated product with carbon dioxide. Carbamates of the second general formula above are obtained by treating specified 1,2-alkylene oxides with specified di- or poly-amines and reacting the product with carbon dioxide.

    10.
    发明专利
    未知

    公开(公告)号:SE339325B

    公开(公告)日:1971-10-04

    申请号:SE1124368

    申请日:1968-08-21

    Applicant: HOECHST AG

    Abstract: 1,223,477. Curing epoxy resins. FARBWERKE HOECHST A.G. 15 Aug., 1968 [23 Aug., 1967], No. 39144/68. Heading C3B. [Also in Division B2] Epoxy resins are cured using a mixture of: (I) a Lewis acid and (II) a phosphorus compound in which R and R 1 are each C 1-10 alkyl, aryl, cycloalkyl, alkaryl, aralkyl, alkoxyalkyl, alkoxyaryl, hydroxyalkyl, hydroxyaryl, hydroxyaralkyl or alkenyl radicals which may optionally be substituted by halogen, e.g. Cl or Br. Examples of I are: BF 3 or its complexes with amines or ethers, SnCl 4 , SbF 5 , SbCl 5 , or PCl 5 . Examples of II are: vinyl-, methyl-, ethyl-, 2-chloroethyl-, 1,2 - dichloroethyl, propyl, butyl, hydroxymethyl-, 1 - hydroxyethyl, 2 - hydroxypropyl or α - hydroxybenzyl - phosphonic acid or methyl-, ethyl-, propyl-, isopropyl-, n-butyl-, iso-butyl-, tert - butyl-, methoxymethyl-, butoxyethyl-, phenyl-, 2 - methylphenyl-, 3 - methylphenyl or 2,4,6 - trichlorophenyl - monoesters of phosphoric acid. I may be used at 0À1 to 5 mole per cent per average epoxide equivalent of the resin. II may be used so as to provide 0À2 to 0À6 hydroxyl equivalents per epoxide equivalent of the resin. Conventional fillers, pigments and dyestuffs may be present. Curing may take place at ambient temperature.

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