Polymeric composition and sealant layer with same

A polymer and composition technology, applied in the direction of synthetic resin layered products, layered products, transportation and packaging, etc., can solve the problems of damage to heat sealing closure, unqualified products, increased costs, etc., to achieve improved heat sealing properties, Effect of low heat sealing initiation temperature and high heat adhesive strength

Active Publication Date: 2013-07-31
DOW GLOBAL TECH LLC
View PDF16 Cites 18 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Otherwise, the heat-seal closure will be compromised, resulting in off-spec product, rejects, and increased costs

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Polymeric composition and sealant layer with same
  • Polymeric composition and sealant layer with same
  • Polymeric composition and sealant layer with same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0213] 1. Polymer composition

[0214] Block Composites, Component (C) as described in co-pending U.S. Patent Application 61 / 248,160 filed October 2, 2009 The preparations described are hereby incorporated by reference in their entirety.

[0215] The polymerization conditions to produce block composite Examples 02, 03 and 14 are provided in Tables 3A-3D below. The physical properties of the resulting block composites 02, 03 and 14 are provided in Table 4.

[0216] The catalyst system includes a catalyst ([[rel-2',2'''-[(1R,2R)-1,2-cyclohexanediylbis(methyleneoxy-κO)]bis[3-(9H -carbazol-9-yl)-5-methyl[1,1'-biphenyl]-2-oxocation (olato)-κO]](2-)]dimethyl-hafnium) and cocatalyst, Methyl di(C 14-18 Tetrakis (pentafluorophenyl) boride mixtures of alkyl) ammonium salts, which are substantially as disclosed in Example 2 of USP 5,919,9883, by long-chain trialkylamine (Armeen TM M2HT, available from Akzo-Nobel, Inc.), HCl and Li[B(C 6 f 5 ) 4 ], purchased from Boulder Scientif...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
melt flow indexaaaaaaaaaa
melting pointaaaaaaaaaa
melt flow indexaaaaaaaaaa
Login to view more

Abstract

Disclosed herein is a polymeric composition. The polymeric composition includes: (A) a propylene-based polymer; (B) an ethylene/a-olefin polymer; (C) a block composite comprising: i) a propylene-based crystalline polymer; ii) an ethylene/a-olefin polymer; and iii) a block copolymer comprising a propylene-based crystalline block and an ethylene/a-olefin block. The polymeric composition provides improved heat seals when formed into film, film layer, or flexible containers such as retort pouch.

Description

Background technique [0001] Plastic films are used in a variety of packaging applications, such as bags, containers, cups, retorts, tubes, and saucers. Laminates, monolayer films, and multilayer films with heat-sealable layers are commonly used in "form, fill, and seal" (FFS) machines. The FFS machine produces a continuous flow of packages from the film which can be closed by an inter-film seal. [0002] A heat-seal closure between the films is formed by placing the films between opposing heat-seal slits applying pressure and also applying heat above the seal-initiating temperature of the films. The heat-seal closure made is usually strongest after the seal has cooled to ambient temperature. To increase throughput, the package is filled with product before the heat seal has cooled completely. Therefore, it is necessary for a heat-sealed closure to provide sufficient strength very quickly without cooling the package to ambient temperature. Otherwise, the heat-seal closure w...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12B32B27/32C08J5/18
CPCC08L23/14C08J2423/06C08F297/08B32B2307/306C08L53/00C08L23/12B32B27/08B32B2439/46C08J2323/12B32B2307/72B32B2307/31C08J5/18B32B2270/00C08L23/06B32B27/32C08J2453/00Y10T428/1334Y10T428/31913C08L2666/04C08F210/06C08F2/001C08F4/64193C08F210/16C08F2500/03C08F2500/12C08F2500/20C08F2500/34C08F2500/33C08F2500/32C08F2500/27
Inventor 梁文斌K.L.沃尔顿G.R.马钱德
Owner DOW GLOBAL TECH LLC
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap