KR960022744A - Degradable Resin Composition - Google Patents

Abstract

The present invention consists of polyolefin resins, aliphatic polyesters, photodegradable derivatives, inorganic fillers and, optionally, compatibilizers, and synergistic action of the components to reinforce each other to ensure excellent biodegradability and photodegradability as well as incineration at incineration. Excellent protection and air pollution prevention function is easy to decompose even if disposed of in any environment after use, the resin composition is less burdensome to nature.

Description

Degradable Resin Composition

As this is a public information case, the full text was not included.

Claims (19)

Degradable polyolefin resin composition comprising 1 to 50% by weight of aliphatic polyester, 0.01 to 10% by weight of an enterically degradable compound and 10 to 60% by weight of an inorganic filler, and optionally 0.1 to 12 parts by weight of a compatibilizer with respect to 100 parts by weight of the total composition. . The composition of claim 1 wherein said polyolefin resin is a resin comprising a polyethylene or polypropene component. The composition of claim 2 wherein the polyethylene has a melt flow index of 0.01 to 40 g / 10 min and specific gravity of 0.916 to 0.961 g / cm 2. The composition of claim 2 wherein the polypropylene has a melt flow index of 0.3 to 35 g / 10 minutes and a specific gravity of 0.890 to 0.910 g / cm 2. The composition of claim 4 wherein said polypropylene is a copolymer with ethylene having an average ethylene content of 2.5 to 8.5 weight percent. The composition according to claim 1, wherein the aliphatic polyester is a compound composed of repeating units having the following structure. (Wherein a is an integer from 1 to 5 and b is 0 or 1). The composition of claim 1, wherein the photodegradable inducing compound is at least one compound selected from modified polyethylenes having ionicity and unsaturated ethylenic ring anhydrides grafted polyolefins. The composition according to claim 7, wherein the content of the modified polyethylene having ionicity is 0.01 to 10% by weight based on the total weight of the composition. The composition according to claim 8, wherein the melt polyethylene having a ionic property has a melt flow index of 1.0 to 2.6 g / 10 min and a specific gravity of 0.940 to 0.950 g / cm 2. The composition of claim 8, wherein the modified polyethylene having ionicity has Natrung, zinc or lithium ions. The composition according to claim 7, wherein the content of the polyolefin grafted with the unsaturated ethylenic ring anhydride is 0.1 to 10.0% by weight. 12. The polyolefin grafted with unsaturated ethylenic ring anhydride according to claim 11, wherein the polyolefin grafted with unsaturated ethylenic ring anhydride has a graft% of unsaturated ethylenic ring anhydride of 0.01 to 10%, a melt flow index of 1 to 1,300 g / 10 minutes, and a specific gravity of 0.757 to 0.965 g / cm 2. The composition of claim 1 further comprising a photosensitizer. The composition of claim 13, wherein the photosensitive agent is included in an amount of 0.001 to 0.1 parts by weight based on 100 parts by weight of the polyolefin composition. The composition of claim 13, wherein the photosensitizer is an iron compound. The composition of claim 15, wherein the iron-based compound is at least one compound selected from ferric acetylacetonate, ferric diethyldithiocarbamate, ferric stearate and ferric palmitate. The composition of claim 1 wherein said inorganic filler is calcium carbonate. The composition according to claim 17, wherein the calcium carbonate has a 325 mesh residue of 0.02% or less, an average particle diameter of 10 µm or less, and a water content of 0.2% or less. According to claim 1, wherein the compatibilizer is a polyolefin grafted or copolymerized epoxy compounds, unsaturated ethylene ring anhydride and an epoxy compound grafted or terpolymer polyolefin, unsaturated ethylene ring anhydride and acrylate grafted or terpolymerized Wherein the polyolefin and acrylate are at least one compound selected from grafted or copolymerized polyolefins. ※ Note: The disclosure is based on the initial application.