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Adhesive compositions containing functionalized ethylene/alpha-olefin interpolymers and rosin-based tackifiers

A technology of olefin interpolymers and compositions, applied in rosin adhesives, film/sheet adhesives, graft polymer adhesives, etc., can solve the problem of high production cost and tight supply of hydrogenated tackifiers And other issues

Active Publication Date: 2016-03-09
DOW GLOBAL TECH LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, hydrogenated tackifiers are expensive to produce and are currently in tight supply

Method used

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  • Adhesive compositions containing functionalized ethylene/alpha-olefin interpolymers and rosin-based tackifiers
  • Adhesive compositions containing functionalized ethylene/alpha-olefin interpolymers and rosin-based tackifiers
  • Adhesive compositions containing functionalized ethylene/alpha-olefin interpolymers and rosin-based tackifiers

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Embodiment Construction

[0016] As discussed above, the present invention provides a composition comprising the following components:

[0017] A) Anhydride and / or carboxylic acid functionalized ethylene / α-olefin interpolymers comprising the following properties:

[0018] i) a melt viscosity (177°C) of less than or equal to 50,000 cP; and

[0019] ii) a density of 0.855 to 0.895 g / cc;

[0020] B) a rosin based tackifier; and

[0021] Wherein the tackifier is selected from the following:

[0022] i) partially hydrogenated glycerides;

[0023] ii) fully hydrogenated pentaerythritol esters;

[0024] iii) fully hydrogenated glycerides;

[0025] iv) non-hydrogenated esters having a Tg of 30°C to 50°C, further 32°C to 48°C, further 34°C to 46°C, further 36°C to 44°C; or

[0026] v) its combination.

[0027] Compositions of the invention may comprise a combination of two or more embodiments as described herein.

[0028] In one embodiment, the tackifier is selected from the following:

[0029] ii) ful...

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Abstract

The invention provides a composition comprising the following components: A) an anhydride and / or carboxylic acid functionalized ethylene / alpha-olefin interpolymer comprising the following properties: i) a melt viscosity (177 DEG C) less than, or equal to, 50,000 cP; and ii) a density from 0.855 to 0.895 g / cc; B) a rosin-based tackifier; and wherein the tackifier is selected from the following: i) a partially hydrogenated glycerol ester; ii) a fully hydrogenated pentaerythritol ester; iii) a fully hydrogenated glycerol ester; iv) a non-hydrogenated ester with a Tg from 30 DEG C to 50 DEG C; or v) a combination thereof.

Description

[0001] References to related applications [0002] This application claims the benefit of International Application No. PCT / CN13 / 080036 filed on July 24, 2013. Background technique [0003] In the adhesive industry, single site catalyzed polyolefin elastomers are typically formulated with hydrogenated (H2HCR) or fully aliphatic tackifiers (for hot melt adhesives (HMA)) to achieve good adhesive performance. However, hydrogenated tackifiers are expensive to produce and are currently in tight supply. Rosin-based tackifiers (tackifiers derived from rosin) that are readily available are less costly than H2HCR tackifiers. There is a need for new adhesive compositions containing rosin-based tackifiers with improved heat resistance and flexibility at room and low temperatures (-17°C). [0004] Adhesive formulations are disclosed in the following references: US Pat. No.: JP3046514B (Abstract), JP2052668B (Abstract), JP1029830B (Abstract), JP2008069295A (Abstract), JP61181882A (Abst...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J11/08C09J151/06C08L51/06C09J7/29
CPCC09J151/06C08L51/06Y02P20/582C09J7/29C09J11/08C08L93/04C09J2301/122C09J193/04C09J2400/283C09J2423/04C09J2423/106C09J2467/006C09J2491/006C09J2493/00
Inventor L·L·W·陈S·雅尔瓦
Owner DOW GLOBAL TECH LLC
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