Polymer compositions and moulded bodies made therefrom

Abstract

The invention relates to a polymer composition comprising a biologically degradable polymer and a material from sea plants and/or shells of sea animals or at least two components selected from the group consisting of saccharides and the derivatives thereof, proteins, amino acids, vitamins and metal ions. The invention additionally relates to a molded article comprising said polymer composition. Said molded article may be used packaging material or fibrous material, in the form of fibrous material as mixing component for the production of yarns, and in the form of fibrous material for the production of nonwoven fabrics or woven fabrics.

1 . Polymer composition comprising a biologically degradable polymer and a material from sea plants and/or shells of sea animals:  
     
     
         2 . Polymer composition according to  claim 1 , wherein the material from sea plants is selected from the group consisting of algae, kelp, seaweed and mixtures thereof.  
     
     
         3 . Polymer composition according to  claim 2 , wherein the material from sea plants is selected from the group consisting of brown algae, green algae, red algae, blue algae and mixtures thereof.  
     
     
         4 . Polymer composition according to one of the preceding claims, wherein the material from the shells of sea animals is selected from the group consisting of sea sediments and grounded shells of crabs, lobsters, crustaceans and mussels and mixtures thereof.  
     
     
         5 . Polymer composition according to one of the preceding claims, wherein the material from sea plants and/or shells of sea animals is provided in an amount of 0.1 to 30 weight-% based on the weight of the biologically degradable polymer.  
     
     
         6 . Polymer composition according to one of the preceding claims, wherein the biologically degradable polymer is cellulose and the material from sea plants are algae.  
     
     
         7 . Polymer composition comprising a biologically degradable polymer and at least two components selected from the group consisting of saccharides and the derivatives thereof, proteins, amino acids, vitamins and metal ions.  
     
     
         8 . Polymer composition according to  claim 7 , wherein at least three components are present.  
     
     
         9 . Polymer composition according to  claim 7 , wherein at least four components are present.  
     
     
         10 . Polymer composition according to one of  claims 7  to  9 , wherein the at least two components are provided in an amount of 0.1 to 30 weight-% based on the weight of the biologically degradable polymer.  
     
     
         11 . Polymer composition according to one of  claims 7  to  10 , wherein the at least two components are selected from the group consisting of saccharides and the derivatives thereof and amino acids.  
     
     
         12 . Polymer composition according to one of the preceding claims, wherein the biologically degradable polymer is selected from the group consisting of cellulose, modified cellulose, latex, vegetable and animal protein, and mixtures thereof.  
     
     
         13 . Molded article comprising a polymer composition according to one of the preceding claims.  
     
     
         14 . Molded article according to  claim 13 , wherein the molded article is selected from the group consisting of tanks, films, membranes, woven fabrics and fibers.  
     
     
         15 . Molded article according to  claim 14 , wherein the fibers are staple fibers, monofilaments or endless filaments.  
     
     
         16 . Use of the molded article according to one of  claims 13  to  15  as packaging material or fibrous material.  
     
     
         17 . Use of the molded article according to one of  claims 13  to  15  in the form of a fibrous material as mixing component for the production of yarns.  
     
     
         18 . Use of the molded article according to one of  claims 13  to  15  in the form of a fibrous material for the production of nonwoven fabrics or woven fabrics.  
     
     
         19 . Use of the molded article according to one of  claims 13  to  15  in the form of a fibrous material for the production of nonwoven fabrics or woven fabrics, wherein a component selected from the group consisting of cotton wool, lyocell, rayon, carbacell, polyester, polyamide, cellulose acetate, acrylate, polypropylene or mixtures thereof is additionally present in the nonwoven fabric or woven fabric.  
     
     
         20 . Use of the molded article according to  claim 19 , wherein 0.1 to 30 weight-% of the additional component are contained.  
     
     
         21 . Woven fabric comprising a molded article according to one of  claims 13  to  15 .  
     
     
         22 . Nonwoven fabric comprising a molded article according to one of  claims 13  to  15 .  
     
     
         23 . Article of clothing comprising a molded article according to one of claims  13  or  15 .  
     
     
         24 . Method of producing a molded article according to one of  claims 13  to  15 , comprising the following steps: 
 (A) continuously or discontinuously mixing the biologically degradable polymer and the material from sea plants and/or shells of sea animals or the at least two components selected from the group consisting of saccharides and the derivatives thereof, proteins, amino acids, vitamins and metal ions,  
 (B) producing a moldable mass,  
 (C) processing the mass obtained in (B) to form a molded article, and  
 (D) subsequently treating the produced molded article.  
 
     
     
         25 . Method according to  claim 24 , wherein a molded article according to one of  claims 13  to  15  is produced.