KR960022701A - Polymer film and preparation method thereof - Google Patents

Abstract

The present invention relates to a polymer film and a method for producing the same. Preparing a polyester resin containing 0.01 to 1.0 parts by weight of a sulfonic acid metal salt derivative having an acid value of 1.0 mgKOH / g or less and 0.005 to 0.5 parts by weight of a hindered phenolic compound with respect to the polyester resin; Preparing a primary mixed resin by a compounding method by melting and mixing 5 to 35 parts by weight of a polyolefin-based resin having a resin content of 65 to 95 parts by weight and a melt index of 1.0 to 25 (g / 10 minutes), and the mixed resin. The polymer film produced by drying, melting, and compressing a sheet after forming it is stretched to have excellent uniformity of physical properties, excellent antistatic properties and printability on the surface of the film, beautiful appearance, apparent density, thermal stability, and the like. The film properties of were improved.

Description

Polymer film and preparation method thereof

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

Claims (7)

The main repeating unit polyester resin containing 0.01 to 1.0 parts by weight of the sulfonic acid metal salt derivative having an acid value of 1.0 mgKOH / g or less and 0.005 to 0.5 parts by weight of the hindered phenol compound, based on the polyester resin, was 65 to A polymer film comprising 95 parts by weight and a polyolefin resin having a melt resin of 1.0 to 25 (g / 10 minutes) by mixing 5 to 35 parts by weight with respect to all the polymers and biaxially stretching. The polymer film according to claim 1, wherein the sulfonic acid metal salt derivative is represented by the following formula. R ₁ -S0 ₃ Me (Wherein R ₁ is an alkyl group having 5 to 20 carbon atoms, Me is any one of alkaline earth metals or alkali metal elements including Li, Na, K and Mg.) The polymer film of claim 1, wherein the polyolefin-based resin is at least one selected from the group consisting of polyethylene, polypropylene, and polymethylene. Preparing a polyester resin containing 0.01 to 1.0 parts by weight of a sulfonic acid metal salt derivative having an acid value of 1.0 mgKOH / g or less and 0.005 to 0.5 parts by weight of the hindered phenol compound based on the polyester resin; A primary mixed resin was prepared by compounding by melt-mixing 65 to 95 parts by weight of the polyester resin and 5 to 35 parts by weight of the polyolefin resin based on a melt index of 1.0 to 25 (g / 10 minutes) based on the total polymer. Doing; And drying and melting and compressing the mixed resin to form a sheet and to stretch the mixed resin. The method of claim 4, wherein the sulfonic acid metal salt derivative is represented by the following formula. R ₁ -S0 ₃ Me (Wherein R ₁ is an alkyl group having 5 to 20 carbon atoms, Me is any one of alkaline earth metals or alkali metal elements including Li, Na, K and Mg.) The method of claim 4, wherein the polyolefin-based resin is at least one selected from the group consisting of polyethylene, polypropylene, and polymethylene. The method of manufacturing a polymer film according to claim 4, wherein in the compounding melt mixing, the compounding temperature condition and the final discharge resin temperature condition satisfy the following formula. A) Compounding temperature condition 200 ℃ <T _{1 </ SB <250 ℃, T f} = T _i + 15 ℃, b) Final discharge resin temperature T _f + 10 ℃ <T _p + 20 ℃, provided T _i is Initial inlet temperature, T _f is final discharge temperature, T _p is final discharge resin temperature. ※ Note: The disclosure is based on the initial application.