US3717526A - Production of textile articles - Google Patents

Production of textile articles Download PDF

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Publication number
US3717526A
US3717526A US00038505A US3717526DA US3717526A US 3717526 A US3717526 A US 3717526A US 00038505 A US00038505 A US 00038505A US 3717526D A US3717526D A US 3717526DA US 3717526 A US3717526 A US 3717526A
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US
United States
Prior art keywords
process according
article
vinyl chloride
vinyl
copolymer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US00038505A
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English (en)
Inventor
L Visnovsky
P Stordeur
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bayer Agriculture BVBA
Original Assignee
Monsanto Europe NV SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Monsanto Europe NV SA filed Critical Monsanto Europe NV SA
Application granted granted Critical
Publication of US3717526A publication Critical patent/US3717526A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N7/00—Flexible sheet materials not otherwise provided for, e.g. textile threads, filaments, yarns or tow, glued on macromolecular material
    • D06N7/0005—Floor covering on textile basis comprising a fibrous substrate being coated with at least one layer of a polymer on the top surface
    • D06N7/0007—Floor covering on textile basis comprising a fibrous substrate being coated with at least one layer of a polymer on the top surface characterised by their relief structure
    • D06N7/0013—Floor covering on textile basis comprising a fibrous substrate being coated with at least one layer of a polymer on the top surface characterised by their relief structure obtained by chemical embossing (chemisches Prägen)

Definitions

  • the process of the invention is one for producing a textile article backed with vinyl chloride polymer foam fusible at a temperature of below 150 C., which comprises applying to the textile article a foamable composition comprising polyvinyl chloride or a copolymer of vinyl chloride and a minor proportion of comonomer, a plasticizer, and a nitrogen-evolving blowing system active at a temperature below 150 C., and heating the treated article to activate the blowing system.
  • the process is particularly useful for backing carpets, and also flooring material, which contain synthetic fibers sensitive to or damaged by high temperatures (such as 150 C. or above), such as for example, nylon, acrylic, olefin, e.g., polypropylene, polyester or viscose fibers.
  • carpets and other textile materials which can be backed by foamed vinyl chloride polymer according to the process of the invention need not, of course, consist wholly of synthetic fiber but can include other materials that in themselves are heat resistant.
  • the vinyl chloride polymer foam gives good adhesion to synthetic fibers, and because the process is operated below 150 C. there is little tendency for the synthetic fibers to deteriorate as a result of being overheated.
  • the foamable composition can be applied to the textile article in paste form by spreading on to synthetic woven or non-woven articles, the paste being subsequently foamed.
  • a textile article can be backed with the polymer foam by fusing a sheet of the foamed polymer on to the back of the article.
  • the invention further provides a textile article backed with a foamed polyvinyl chloride or a foamed copolymer of vinyl chloride and a minor proportion of comonomer, the foamed polymer being fusible at a temperature below 150 C.
  • the textile article is a carpet containing synthetic fibers sensitive to or damaged by high temperatures.
  • the vinyl chloride polymers which are most useful are polyvinyl chloride and copolymers of vinyl chloride and a minor proportion of comonomer which is generally from 2 to 14 percent by weight and preferably from 2 to percent by weight of the copolymer. Excellent results are obtained when the proportion of comonomer is from 2 to 5 percent by weight of the copolymer.
  • Convenient vinyl chloride copolymers which are used in accordance with this invention include copolymers of vinyl chloride with such comonomers as vinylidene halides such as vinylidene chloride, vinyl ethers such as acetyl vinyl ether and tridecyl vinyl ether, olefins such as ethylene and propylene, vinyl esters such as vinyl acetate, vinyl stearate and vinyl propionate and the like.
  • the copolymers should preferably be paste forming resins and they can also contain a third copolymerizable monomer.
  • the vinyl chloride polymer foams used in the process of the invention are fusible at a temperature of below 150 C.
  • the temperature of fusion of the foam is within the range to C. and in the process foaming takes place at a corresponding temperature, the extent of the expansion being from 100 to 500 percent.
  • plasticizer which gives low plastisol viscosity and slow ageing.
  • suitable plasticizers include butylbenzylphthalate, dihexyl, diheptyl and dioctyl phthalate.
  • the nitrogen-evolving blowing systems generally comprise a mixture of conventional blowing agents and a metallic salt acting as a modifying agent or kicker.
  • Conventional blowing agents which are used in accordance with this invention are azodicarbonamide, p,p'-oxybisbenzenesulfonyl hydrazide, benzenesulphonhydrazide and toluene sulfonhydrazide, among others.
  • the blowing agents are used as mixtures such as a mixture of azodicarbonamide with benzenesulphonhydrazide or toluene sulphonhydrazide or a mixture of p,p'-oxybisbenzenesulfonyl hydrazide with benzenesulphonhydrazide or toluene sulphonhydrazide.
  • the most preferred blowing system comprises a mixture of azodicarbonamide and benzenesulphonhydrazide, the benzenesulphonhydrazide being in a proportion of between 5 and 50 percent by weight of the azodicarbonamide and preferably between 10 and 40 percent by weight of the azodicarbonamide.
  • a particularly useful blowing system is that in which azodicarbonamide and benzenesulphonhydrazide are present in a proportion by weight of about 7 parts to 3 parts.
  • the finest particle size of azodicarbonamide is employed and the particles have a high specific area.
  • the surface area of the particles is preferably greater than 3.8 square meters per gram and the particle size is below 10 microns.
  • the operating temperatures of the process of the invention is modified by the presence of the metallic salt in the blowing agent.
  • metallic salts include cadmium, zinc, barium and lead. Mixtures of these salts can also be used and the particularly preferred mixtures are of cadmium and zinc salts or barium and zinc salts.
  • the most preferred salts are lead salts, in particular lead oleates.
  • the blowing system is preferably used in a ground paste form.
  • the blowing system tends to decompose at room temperature and this difficulty is overcome if plasticizers such as epoxidized soya bean oil are incorporated into the blowing system.
  • EXAMPLE 1 This example illustrates a process according to the invention for the production of a carpet containing acrylic fibers backed with a vinyl chloride copolymer foam.
  • a foamable composition comprising a copolymer of vinyl acetate and vinyl chloride containing percent by weight of vinyl acetate, was first prepared by adding to 100 parts by weight of the copolymer a paste comprising 65 parts by weight of a plasticizer and 6 parts by weight of a nitrogen-evolving blowing system.
  • the plasticizer used was butylbenzylphthalate and the blowing system was a mixture of 3 parts azodicarbonamide, 1 part benzene-sulphonhydraz'ide and 2 parts liquid lead kicker.
  • the foamable composition was then fed into the hopper of a screw extruder and extruded through a slit die maintained at a temperature of 145 C. on to the back of a synthetic carpet containing acrylic fibers.
  • EXAMPLE 2 This example illustrates a process according to the invention for the production of a carpet containing polypropylene fibers backed with a vinyl chloride copolymer foam.
  • a foamable composition comprising a copolymer of vinyl acetate and vinyl chloride containing 3 percent by weight of vinyl acetate, was first prepared by adding to 100 parts by weight of the copolymer a paste comprising 65 parts by weight of a plasticizer and 6 parts by weight of a nitrogen-evolving blowing system.
  • the plasticizer used was a mixture of 40 parts of butylbenzyl-phthalate and 25 parts of dioctylphthalate, and the blowing system comprises 2.5 parts of azodicarbonamide, 1.5 parts of benzenesulphonhydrazide and 2 parts of liquid lead kicker.
  • the foamable composition was then fed into the hopper of a screw extruder and extruded through a slit die maintained at a temperature of 145 C. on to the back of a synthetic carpet containing polypropylene fibers.
  • EXAMPLE 3 This example illustrates a process according to the invention for the production of a carpet backed with a vinyl chloride copolymer foam.
  • Example 1 The foamable composition described in Example 1 was made into a paste. A layer of the composition 1 millimeter thick, representing a coating weight of 1,250 grams per square meter, was spread on to a synthetic carpet containing propylene fibers.
  • the treated carpet was then heated in an air circulated oven at a temperature of 145 C. for a period of 12 minutes and a foam expansion of 350 percent was achieved.
  • EXAMPLE 4 This example illustrates a process according to the invention for the production of a carpet backed with a vinyl chloride copolymer foam.
  • Example 2 The foamable composition described in Example 2 was made into a paste. A layer of the composition 1 millimeter thick, representing a coating weight of 1,250 grams per square meter, was spread on to a synthetic carpet containing nylon fibers.
  • the treated carpet was then heated in an air circulated oven at a temperature of C. for a period of 12 minutes and a foam expansion of 350 percent was obtained.
  • a process for producing a textile article backed with vinyl chloride polymer foam fusible at a temperature below about C. which comprises applying to the textile article a foamable composition comprising a vinyl chloride polymer, a plasticizer and a nitrogenevolving blowing system active at a temperature below about 150 C. and heating the treated article.
  • the vinyl chloride polymer is selected from the group consisting of polyvinyl-chloride and copolymers of vinyl chloride with vinylidene chloride, vinyl acetate, vinyl stearate, vinyl propionate, acetyl vinyl ether, tridecyl vinyl ether, ethylene and propylene.
  • blowing system is composed of nitrogen-evolving blowin g agents.
  • blowing system is selected from the group consisting of a mixture of azodicarbonamide with bcnzencsulphonhydrazide or toluencsulphonhydrazide or a mixture of p,p'-oxybisbenzenesulfonylhydrazide with benzenesulphonhydrazide or toluenesulphonhydrazide.
  • plasticizer is selected from the group consisting of butylbenzylphthalate, dihexyl phthalate, diheptyl phthalate or dioctyl phthalate.
  • a process for producing a textile article backed with vinyl chloride polymer foam fusible at a temperature below about C. which comprises forming a sheet of foamed vinyl chloride polymer from a foamable composition comprising a vinyl chloride polymer, a plasticizer and a nitrogen-evolving blowing system active at a temperature below about 150 C. and fusing said sheet to said article.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Laminated Bodies (AREA)
US00038505A 1969-05-19 1970-05-18 Production of textile articles Expired - Lifetime US3717526A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB25368/69A GB1249074A (en) 1969-05-19 1969-05-19 Production of foamed resins

Publications (1)

Publication Number Publication Date
US3717526A true US3717526A (en) 1973-02-20

Family

ID=10226540

Family Applications (1)

Application Number Title Priority Date Filing Date
US00038505A Expired - Lifetime US3717526A (en) 1969-05-19 1970-05-18 Production of textile articles

Country Status (4)

Country Link
US (1) US3717526A (enrdf_load_stackoverflow)
BE (1) BE750363A (enrdf_load_stackoverflow)
DE (1) DE2023431B2 (enrdf_load_stackoverflow)
GB (1) GB1249074A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4018962A (en) * 1975-04-09 1977-04-19 Pedlow J Watson Arc and fireproofing tape

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2703775A (en) * 1952-02-01 1955-03-08 Connecticut Hard Rubber Co Bonded silicone rubber products and method of making same
US2943949A (en) * 1957-10-23 1960-07-05 Congoleum Nairn Inc Decorative plastic surface covering and process therefor
US2962407A (en) * 1955-11-07 1960-11-29 Monsanto Chemicals Method for preparing laminated foam structures
US3032828A (en) * 1960-03-29 1962-05-08 Us Rubber Co Process of making fabric-foam laminates
US3239365A (en) * 1963-04-29 1966-03-08 Congoleum Nairn Inc Resilient decorative surface covering and method of making same

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2703775A (en) * 1952-02-01 1955-03-08 Connecticut Hard Rubber Co Bonded silicone rubber products and method of making same
US2962407A (en) * 1955-11-07 1960-11-29 Monsanto Chemicals Method for preparing laminated foam structures
US2943949A (en) * 1957-10-23 1960-07-05 Congoleum Nairn Inc Decorative plastic surface covering and process therefor
US3032828A (en) * 1960-03-29 1962-05-08 Us Rubber Co Process of making fabric-foam laminates
US3239365A (en) * 1963-04-29 1966-03-08 Congoleum Nairn Inc Resilient decorative surface covering and method of making same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4018962A (en) * 1975-04-09 1977-04-19 Pedlow J Watson Arc and fireproofing tape

Also Published As

Publication number Publication date
DE2023431A1 (enrdf_load_stackoverflow) 1971-02-11
BE750363A (fr) 1970-11-13
GB1249074A (en) 1971-10-06
DE2023431B2 (enrdf_load_stackoverflow) 1973-10-18

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