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| Vinyl monomer compositions with accelerated surface cure |
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Recyclable carpet floor covering
| Details |
Inventors: Schwarz, Gerhard; Weber, Manfred;
Assignee: Hoechst Aktiengesellschaft (DE)
Primary Examiner: Krass; Frederick
Assistant Examiner:
Attorney, Agent or Firm: Connolly & Hutz
There is described a recyclable carpet floor covering comprising a backing, a tied-in pile yarn and a back finish with or without a secondary backing adhered to the (primary) backing, wherein the pile yarn, the (primary) backing and a secondary backing comprise polyester fibers and the back finish for the (primary) backing and for adhering a secondary backing comprises a consolidating and adhering composition comprising a combination of 10-70% by weight of a water-soluble or -dispersible first polyester A, and 90-30% by weight of a water-insoluble second polyester B, There are further described a process for producing the recyclable carpet floor covering and also an aqueous preparation of the consolidating and adhering composition comprising the polyesters A and B and the use thereof for consolidating the carpet floor coverings and optionally adhering them to secondary backings. |
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DETAILED DESCRIPTION What is claimed is: 1.
A recyclable carpet floor covering comprising a backing, a tied-in pile yarn and a back finish with or without a secondary backing adhered to the (primary) backing, wherein the pile yarn, the (primary) backing and a secondary backing comprise polyester fibers and the back finish for the (primary) backing and for adhering a secondary backing comprises a consolidating and adhering composition comprising a combination of 10-70% by weight of a water-soluble or -dispersible first polyester A, and 90-30% by weight of a water-insoluble second polyester B, wherein the water-soluble or -dispersible polyester A conforms to the formula I ##STR8## where R.
sup.
1 is on average 25-90 mol % o-, m- or p-phenylene, 10-25 mol % groups of the formulae II or III ##STR9## where R.
sup.
3 is o-, m- or p-phenylene or straight-chain or branched alkylene of 2-6, carbon atoms, and 0-50 mol % straight-chain or branched alkylene of 1-6, carbon atoms and/or cyclohexylene radicals, R.
sup.
2 is on average 50-100 mol % radicals of the formula IV ##STR10## where R.
sup.
4 is hydrogen or methyl and m is 1 or 2, 0-50 mol % alkylene radicals of 2-6 carbon atoms, and 0-20 mol % polyoxyalkylene radicals of the formula IV where R.
sup.
4 is hydrogen or methyl and m is a number corresponding to a number average molecular weight of the polyoxyalkylene radical of up to 2000, E is hydroxyl, alkoxy of 1-4 carbon atoms or the radical--O--R.
sup.
2 OH, M is hydrogen or a lithium, sodium or potassium atom or an ammonium group, n is such that the number average molecular weight, measured in a vapor pressure osmometer in dimethylformamide as the solvent, is from 1000 to 12,000, and the water-insoluble polyester B conforms to the formula V ##STR11## where R.
sup.
4 is on average 50-100 mol % o-, m- or p-phenylene, and 0-50 mol % straight-chain or branched alkylene of 1-6, carbon atoms and/or cyclohexylene radicals, R.
sup.
5 is on average 30-100 mol % radicals of the formula VI ##STR12## where R.
sup.
4 is hydrogen or methyl and m is 1 or 2, and 0-70 mol % alkylene radicals of 2-6 carbon atoms and/or radicals of the formula VII ##STR13## and 0-20 mol % of polyoxyalkylene radicals of the formula IV where R
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Adhesives and Rubbers 
