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

Polyisocyanate curing agent for laminated adhensive and laminated adhensive using the same

A polyisocyanate and isocyanate-based technology, applied in the field of lamination adhesives and polyisocyanate curing agents for lamination adhesives, can solve the problems of difficult to obtain laminated films and the like

Inactive Publication Date: 2006-02-15
NIPPON POLYURETHANE IND CO LTD
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The technique described in JP-A-63-110272 is difficult to obtain a laminated film satisfying this requirement

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
  • Polyisocyanate curing agent for laminated adhensive and laminated adhensive using the same
  • Polyisocyanate curing agent for laminated adhensive and laminated adhensive using the same
  • Polyisocyanate curing agent for laminated adhensive and laminated adhensive using the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0091] In a reaction device with a capacity of 2 liters of a stirrer, a thermometer, an Arin cooling pipe, and a nitrogen inlet pipe, 1 gram of colonate (registered trademark) HX601 made by Nippon Polyurethane Industry Co., Ltd. and 399 grams of monohydric alcohol (1) were added at 70 °C for 3 hours. Then add coupling agent (1) 1 gram therein, prepare polyisocyanate curing agent A.

[0092] The polyisocyanate curing agent A had a viscosity of 2720 mPa·s at 25° C. and an isocyanate group content of 11.1%. The polyisocyanate curing agent A was stored in a dark place at 25°C for one month, and the stability over time was observed, but no special change in appearance was confirmed.

Embodiment 2-6、 comparative example 1、2

[0094] Using the raw materials in Table 1, the same reaction as in Example 1 was used to prepare polyisocyanate curing agents B-H. The obtained polyisocyanate curing agent was stored in a dark place at 25° C. for one month, and its stability over time was visually judged.

[0095] The results are summarized in Table 1.

[0096] Example

[0097] Note 1) In the measurement of the adhesive strength of the PET film / aluminum foil of Examples 7-12 and Comparative Examples 3 and 4, the PET film was broken.

Embodiment 1-6

[0098] In embodiment 1-6, comparative example 1,2 and table 1

[0099] colonateHX: Isocyanate-modified polyisocyanate derived from hexamethylene diisocyanate

[0100] Isocyanate group content = 21.3%

[0101] Viscosity = 1500mPa·s / 25°C

[0102] Monohydric alcohol (1): The number average molecular weight of the monohydric alcohol obtained by adding oxypropylene to methoxypolyethylene glycol with a number average molecular weight of 400 = 1100

[0103] Monohydric alcohol (2): the number average molecular weight of the monohydric alcohol obtained by adding oxypropylene to methoxypolyethylene glycol with a number average molecular weight of 400 = 1400

[0104] Monohydric alcohol (3): the number average molecular weight of the monohydric alcohol obtained by adding oxypropylene to methoxypolyethylene glycol with a number average molecular weight of 700 = 1700

[0105] Monohydric alcohol (4): methoxypolyethylene glycol number average molecular weight = 400

[0106] Monohydric alc...

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
viscosityaaaaaaaaaa
Login to View More

Abstract

The present invention provides a polyisocyanate solidifying agent for laminating adhesive containing isocyanate terminal prepolymer and silane coupling agent and laminating adhesive containing said polyisocyanate solidifying agent and resin containing active hydrogen radical.

Description

technical field [0001] The present invention relates to a polyisocyanate curing agent for a lamination adhesive and a lamination adhesive using the same. Specifically, the present invention relates to a polyisocyanate curing agent for a lamination adhesive having a specific nonionic hydrophilic group, and a lamination adhesive containing the curing agent and an active hydrogen group-containing resin. Background technique [0002] Recently, as a packaging method, composite flexible packaging has been remarkably developed in consideration of the strength of packaging, product protection, workability during packaging, promotional effects using packaging, and reduction of packaging costs by supplying a large amount of film at low cost. As an adhesive agent for the lamination of this kind of film, from the aspects of excellent adhesion performance, durability, heat resistance, etc., and a wide range of applications for various films, the main agent with active hydrogen groups Tw...

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 Patents(China)
IPC IPC(8): C08G18/40C09J175/04
Inventor 森川幸弘东久保一郎吉田孝治笹原俊昭
Owner NIPPON POLYURETHANE IND CO LTD