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    Method for bonding natural or synthetic textile fibers to olefin copolymers
    2.
    发明授权
    Method for bonding natural or synthetic textile fibers to olefin copolymers 失效
    将自然或合成纺织纤维粘合到烯烃共聚物上的方法

    公开(公告)号：US3427183A

    公开(公告)日：1969-02-11

    申请号：US3427183D

    申请日：1965-04-13

    Applicant: MONTEDISON SPA

    Inventor： PORTOLANI AUGUSTO ,  GIULIO ENZO DI ,  MILANO MARIO

    IPC: C08F255/02 ,  C09J151/06 ,  D06M15/28 ,  D06M15/46

    CPC classification number: C08F255/02 ,  C08L2666/14 ,  C08L2666/28 ,  C09J151/06 ,  Y10S156/91 ,  C08F222/00

    Abstract: Compositions for bonding elastomeric, amorphous, saturated copolymers of ethylene with an alpha-olefin to natural or synthetic fibres or articles made therefrom comprise graft polymers of grafting maleic acid on such copolymers, emulsified with water in the presence of a non-ionic and of an anionic surface-active agent to produce a latex, which is mixed with an aqueous dispersion of a phenolformaldehyde resin and matured. The article may be in the form of fabrics, yarns, cords or other manufactured textile articles, tyres, belt conveyers, drive belts made from, say, cotton, nylon, polyester or cellulose fibres. The copolymer may be ethylene with propylene or butene-1, or those disclosed in Specification 856,736 or 856,737. The grafting may be carried out in the presence of an organic peroxide. The non-ionic surfactant may be a polyoxyethylated alkyl phenol, or polyoxyethylated alcohols of formula R(OCH.R1CHR1)nOH where R is an alkyl group, R1 is hydrogen or an alkyl group, and n is 4 to 10. The anionic surfactant may be sodium lauryl sulphate, a sodium salt of a polyoxyethylated phenol, or sodium or potassium oleate, palmitate or steorate. The latex may be obtained by emulsifying an hydrocarbon solution containing the grafted copolymer with an aqueous solution of the surfactants and removing the hydrocarbon solvent from the emulsion say by distillation. A creaming agent such as carboxymethylcellulose may be present in the emulsion. The phenol formaldehyde resin may be a resorcinol-formaldehyde resin. The matured mixture may be applied by immersion, spreading or friction and the treated article dried under an air current. The vulcanizing agents such as organic peroxides, e.g. alpha, alpha1-bis (tert. butyl-peroxy) diisopropylbenzene may be incorporated in the copolymer, and the applied mix of copolymer and vulcanizing agent may contain free radical acceptors such as sulphur, reinforcing fillers, and other additives such as carbon black. In the examples a square rayon fabric is adhered to ethylene-propylene copolymer for the manufacture of tape.ALSO:An elastomeric, amorphous, saturated copolymer of ethylene with an alpha-olefin is bonded to a natural or synthetic fibre or an article made therefrom by grafting maleic acid on to the copolymer, emulsifying the resulting graft copolymer with water in the presence of a nonionic and of an anionic surface active agent to produce a latex, mixing the resulting latex with an aqueous dispersion of a phenol-formaldehyde resin, maturing the resulting mixture applying the matured mixture on to the natural or synthetic fibre or the article, applying a mixture of the copolymer with a vulcanizing agent on to the natural or synthetic fibre or the article to which the mature mixture has already been applied, and vulcanizing the natural or synthetic fibre or the article. The article may be in the form of fabrics, yarns, cords or other manufactured textile articles, tyres, belt conveyors, drive belts made from say cotton, nylon, polyester or cellulose fibres. The copolymer may be ethylene with propylene or butene-1, or those disclosed in Specification 856736 or 856737. The grafting may be carried out in the presence of an organic peroxide. The non-ionic surfactant may be a polyoxyethylated alkyl phenol, or polyoxyethylated alcohols of formula R(OCH.R\svCHR\sv)n OH where R is an alkyl group, R\sv is hydrogen or an alkyl group, and n is 4 to 10. The anionic surfactant may be sodium lauryl sulphate, a sodium salt of a polyoxyethylated phenol, or sodium or potassium oleate, palmitate or steorate. The latex may be obtained by emulsifying a hydrocarbon solution containing the grafted copolymer with an aqueous solution of the surfactants and removing the hydrocarbon solvent from the emulsion say by distillation. A creaming agent such as carboxymethylcellulose may be present in the emulsion. The phenol formaldehyde resin may be a resorcinol-formaldehyde resin. The matured mixture may be applied by immersion, spreading or friction and the treated article dried under an air current. The vulcanizing agents may be organic peroxides e.g. alpha, alpha\sv - bis (tert. butyl-peroxy) diisopropylbenzene. The applied mix of copolymer and vulcanizing agent may contain free radical acceptors such as sulphur, reinforcing fillers, and other additives such as carbon black. In the examples a square rayon fabric is adhered to ethylene-propylene copolymer for the manufacture of tape.ALSO:An elastomeric, amorphous, saturated copolymer of ethylene with an alpha-olefin is bonded to a natural or synthetic fibre or an article made therefrom by grafting maleic acid on to the copolymer, emulsifying the resulting graft copolymer with water in the presence of a non-ionic and of an anionic surface active agent to produce a latex, mixing the resulting latex with an aqueous dispersion of a phenolformaldehyde resin, maturing the resulting mixture applying the matured mixture on to the natural or synthetic fibre or the article, applying a mixture of the copolymer with a vulcanizing agent on to the natural or synthetic fibre or the article to which the mature mixture has already been applied, and vulcanizing the natural or synthetic fibre or the article. The article may be in the form of fabrics, yarns, cords or other manufactured textile articles, tyres, belt conveyors, drive belts made from say cotton, nylon, polyester or cellulose fibres. The copolymer may be ethylene with propylene or butene-1, those disclosed in Specification 856736 or 856737. The grafting may be carried out in the presence of an organic peroxide. The non-ionic surfactant may be a polyoxyethylated alkyl phenol, or polyoxyethylated alcohols of formula R(OCH.R\svCHR\sv)nOH where R is an alkyl group, R\sv is hydrogen or an alkyl group, and n is 4 to 10. The anionic surfactant may be sodium lauryl sulphate, a sodium salt of a polyoxyethylated phenol, or sodium or potassium oleate, palmitate or stearate. The latex may be obtained by emulsifying a hydrocarbon solution containing the grafted copolymer with an aqueous solution of the surfactants and removing the hydrocarbon solvent from the emulsion say by distillation. A creaming agent such as a carboxymethylcellulose may be present in the emulsion. The phenol formaldehyde resin may be a resorcinolformaldehyde resin. The matured mixture may be applied by immersion, spreading or friction and the treated article dried under an air current. The vulcanizing agents may be organic peroxides, e.g. alpha, alpha\sv-bis(tert. butylperoxy)diisopropylbenzene. The applied mix of copolymer and vulcanizing agent may contain free radical acceptors such as sulphur, reinforcing fillers, and other additives such as carbon black. In the Examples a square rayon fabric is adhered to ethylene-propylene copolymer for the manufacture of tape.

    Process for bonding ethylene copolymers to fibers
    3.
    发明授权
    Process for bonding ethylene copolymers to fibers 失效
    将乙烯共聚物粘合到纤维上的方法

    公开(公告)号：US3860442A

    公开(公告)日：1975-01-14

    申请号：US24528972

    申请日：1972-04-18

    Applicant: MONTEDISON SPA

    Inventor： NATTA GIULIO ,  SEVERINI FEBO ,  PORTOLANI AUGUSTO ,  TAVAZZANI CARLO

    IPC: D06M15/21 ,  D06M15/41 ,  D06M15/28 ,  D06M15/46

    CPC classification number: D06M15/41 ,  D06M15/21 ,  Y10T428/2938 ,  Y10T428/2969 ,  Y10T428/31797 ,  Y10T428/31917

    Abstract: An improved process for bonding natural or synthetic fibers to elastomeric copolymers of ethylene and higher alpha-olefins or to terpolymers of ethylene, higher alpha-olefins and cyclic or acyclic dienes having non-conjugated double bonds is disclosed. The process comprises coating the fibers with an aqueous dispersion of phenol-aldehyde resin and a latex of an elastomeric ethylene copolymer or terpolymer as defined above which is grafted with an acid, water-soluble vinyl or vinylidene monomer, the aqueous dispersion having been allowed to mature for from 10 to 80 hours after preparation thereof. After the fibers are coated with the aqueous dispersion and dried, an elastomeric ethylene copolymer or terpolymer as defined above and containing a vulcanizing agent is contacted therewith and vulcanized thereon.

    Abstract translation: 公开了将天然或合成纤维与乙烯和高级α-烯烃的弹性共聚物或乙烯，高级α-烯烃和具有非共轭双键的环状或非环状二烯的三元共聚物结合的改进方法。 该方法包括用酚醛树脂的水性分散体和如上所述的弹性体乙烯共聚物或三元共聚物的胶乳涂覆纤维，该胶乳用酸，水溶性乙烯基或亚乙烯基单体接枝，水分散体已经被允许 其制备后10〜80小时成熟。 在用水分散体涂覆纤维并干燥后，将如上所述含有硫化剂的弹性体乙烯共聚物或三元共聚物与其硫化并硫化。

    Bonding olefin copolymers to polyolefin fibers
    5.
    发明授权
    Bonding olefin copolymers to polyolefin fibers 失效
    将烯烃共聚物粘合到聚烯烃纤维上

    公开(公告)号：US3551284A

    公开(公告)日：1970-12-29

    申请号：US3551284D

    申请日：1968-09-12

    Applicant: MONTEDISON SPA

    Inventor： PORTOLANI AUGUSTO ,  PANCIROLI GINO ,  GIOVANARDI SANDRO

    IPC: C08J5/04 ,  C08L23/16 ,  D06M15/21 ,  D06M15/227

    CPC classification number: C08J5/046 ,  C08J2323/16 ,  C08K3/04 ,  C08K3/06 ,  C08K3/22 ,  C08K3/26 ,  C08K3/346 ,  C08K5/0025 ,  C08K5/09 ,  C08K5/14 ,  C08L7/00 ,  C08L23/10 ,  C08L23/16 ,  C08L91/00 ,  C08L2203/12 ,  C08L2207/14 ,  C08L2312/00 ,  C08L2666/04 ,  D06M15/21 ,  D06M15/227 ,  Y10T428/31913 ,  Y10T442/3886

    Abstract: Polyolefin fibres consisting of isotactic macronolecules have elastomeric, saturated and amorphous ethylene-alpha-olefine copolymers adhesively bonded thereto by applying directly to the fibres a mix of an ethylene-alpha-olefine copolymer containing a curing agent and a reinforcing filler and heating the whole to a temperature sufficient to vulcanize the copolymer mix without melting the polyolefin fibre. The copolymer may be a copolymer of ethylene with propylene or butene-1. The mix can be used as a foamed, spongy product. The fibre may be formed from isotactic polyproylene. The curing agent may be organic peroxides admixed with coagents acting as free radical acceptors such as sulphur, quinonimide compounds, furfural and derivatives thereof, maleic acid, anhydride. The reinforcing filler may be carbon black, or mineral fillers. The mix may be subjected to a thermo-mechanical pre-treatment prior to the addition of the curing agent.ALSO:Polyolefin fibres consisting mainly of isotactic macromolecules or articles obtained therefrom, have elastomeric, saturated and amorphous ethylene-alpha-olefine copolymers adhesively bonded thereto by applying directly to the fibres or articles a mix of an ethylene-alphaolefine copolymer containing a curing agent and a reinforcing filler and heating the whole to a temperature sufficient to vulcanize the copolymer mix without melting the polyolefin fibre. The mix copolymer may be a copolymer of ethylene with propylene or butene 1 obtained by copolymerizing the monomers in the presence of organometallic compounds of aluminium e.g. AlEt3, AlEt2Cl and Al(iso Bu)3, and soluble or dispersed vanadium compounds e.g. VCl4, VOCl3, VAc3 where Ac is acetylacetone, and may have a Mol. Wt. of 50,000 to 500,000 and an ethylene content of 20 to 80% mols. The mix can be used as such or in the form of a foamed, spongy product. The fibre may be formed from polypropylene consisting mainly of isotactic macromolecules obtained through polymerization of the monomer in the presence of stereospecific catalysts consisting of aluminium organometallic compounds such as AlEt3, AlEt2Cl, and titanium compounds such as TiCl3. The curing agents may be organic peroxides, admixed with coagents acting as free radical acceptors such as sulphur, quinonimide compounds, furfurol and its derivatives. Other coagents may be maleic acid, maleic anhydride and other maleic derivatives. Reinforcing fillers may be carbon black or mineral fillers. When a white mineral filler is used, the mix may be subjected to a thermo-mechanical pre-treatment prior to the addition of the curing agents. Other additives may be used in the mix e.g. neutralizing substances for acidic fillers, dyes. In Examples, fabrics for conveyor belts, satin fabrics and fabrics for tapestry are treated.

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