Unlock instant, AI-driven research and patent intelligence for your innovation.

Polyolefin adhesive compositions

A technology of adhesives and polyolefins, which is applied in the field of polyolefin adhesive compositions, and can solve problems such as long curing time

Inactive Publication Date: 2012-05-02
EXXONMOBIL CHEM PAT INC
View PDF37 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when adhesives are formulated with these higher molecular weight waxes, cure times are longer

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
  • Polyolefin adhesive compositions
  • Polyolefin adhesive compositions
  • Polyolefin adhesive compositions

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0175] 1. An adhesive comprising a polyolefin base polymer and 1-15 wt% of at least two wax components, based on the total weight of the polyolefin base polymer and the at least two wax components, wherein the at least two The wax component comprises a first wax component and a second wax component, wherein the second wax component has a weight average molecular weight (Mw 蜡2 ) than the weight average molecular weight (Mw) of the first wax component 蜡1 ) is at least 1000 g / mol.

[0176] 2. The adhesive of embodiment 1, wherein the adhesive has the following properties:

[0177] (a) at least 50% fiber tear at 25°C using Inland paperboard as the substrate; and

[0178] (c) A curing time of less than 3 seconds.

[0179] 3. The adhesive of any one of embodiments 1 or 2, further comprising 1 to 10 wt% of at least one functionalized polyolefin.

[0180] 4. The adhesive of embodiment 3, wherein the functionalized polyolefin comprises 1-6 wt% of the adhesive.

[0181] 5. The adhe...

Embodiment

[0214] All propylene copolymers used in the hot melt adhesive composition examples were prepared using the following procedure. Polymerization was carried out in a liquid filled single stage continuous reactor using a mixed metallocene catalyst system. The reactor was a 0.5 liter stainless steel autoclave reactor and was equipped with a stirrer, water cooling / steam heating element with temperature controller and pressure controller. Solvent, propylene and comonomers (such as 1-hexene and 1-octene) were first purified by passing through a three-column purification system. The purification system consisted of an Oxiclear column (model #RGP-R1-500 from Labclear) followed by 5A and 3A molecular sieve columns. The purification column was regenerated periodically whenever there was evidence of reduced polymerization activity. Both 3A and 5A molecular sieve columns were regenerated in-house under nitrogen at set temperatures of 260°C and 315°C, respectively. The molecular sieve ma...

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
enthalpy of fusionaaaaaaaaaa
viscosityaaaaaaaaaa
crystallization temperatureaaaaaaaaaa
Login to View More

Abstract

Provided are an adhesive and method for hot melt adhesive application. The adhesive comprises polyolefin base polymer and from 1 to 15 wt% of a at least two wax components, based on the total weight of the polyolefin base polymer and the at least two wax components, wherein the at least two wax components comprise a first wax component having a relatively low weight average molecular weight at least 1000 g / mole less than a second wax component having a relatively high weight average molecular weight. The adhesive may have at least 50% fiber tear at 25 DEG C, and a characteristic set time of less than 3 seconds. The adhesive may also include from 1 to 10 wt% of at least one functionalized polyolefin.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to U.S. Application No. 12 / 634,222, filed December 9, 2009, which is a continuation-in-part of U.S. Application No. 12 / 616,637, filed November 11, 2009, which was filed in 2009 Continuation-in-Part of U.S. Application No. 12 / 472,022, filed May 26, which claims priority to U.S. Application No. 61 / 060,014, filed June 9, 2008, and relates to U.S. Application No. 15, 2002 No. 60 / 418,482, U.S. Application No. 60 / 460,714 filed April 4, 2003, 10 / 687,508 issued as U.S. Patent No. 7,294,681, 10 / 686,951 issued as U.S. Patent No. 7,524,910, issued as U.S. Patent No. 7,223,822 10 / 825,380, 10 / 825,635 issued as U.S. Patent No. 7,541,402, 10 / 825,349 issued as U.S. Patent No. 7,550,528, 10 / 825,348 filed April 15, 2004, 11 / 825, filed September 29, 2006 529,839 and 11 / 541,185, filed September 29, 2006, each of which is incorporated herein by reference in its entirety. technical field [0003] This invent...

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): C09J123/02
CPCC08L51/003C09J5/06C08L51/06C08L23/06C09J123/142C08L91/06C08L23/02C08L2666/02
Inventor G·罗德里古兹F·A·施普雷江培军
Owner EXXONMOBIL CHEM PAT INC