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Styrenated terpene resin as well as methods of making and using the same

一种苯乙烯化萜烯、苯乙烯的技术，应用在聚合物领域，能够解决昂贵催化剂体系、有毒、经济合理性障碍等问题

Active Publication Date: 2009-08-12
ARIZONA CHEM CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, none of these patents describe the copolymerization of α-pinene with vinylaromatics such as styrene or α-methylstyrene
[0013] The main disadvantage of the US patents listed above is that they all involve the use of toxic and sometimes very expensive catalyst systems such as antimony halides, trialkylhalosilanes and organic germanium halides and alkoxides
Catalyst removal and / or recovery systems for these processes can also be an obstacle to the economic rationale for using these polymerization conditions

Method used

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  • Styrenated terpene resin as well as methods of making and using the same
  • Styrenated terpene resin as well as methods of making and using the same
  • Styrenated terpene resin as well as methods of making and using the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0075] Example 1 (Using α, β, sty - ie with 0% limonene: Inventive process fed at -10°C)

[0076] A 1.0 liter flask was charged with 140 g of a terpene resin solvent (xylene) recovered from Arizona Chemical's Panama City factory and 10.5 g of anhydrous aluminum chloride, and the suspension was stirred at ambient temperature under a nitrogen atmosphere. The suspension was then cooled to -10°C. Using the addition funnel, mix 175 g in 30 minutes Blends of α-pinene, β-pinene and styrene (weight ratio 35:35:30) was added to the flask while maintaining the polymerization temperature at -12—-8°C (external cooling using ethanol-dry ice mixture if necessary). After the blend feed was complete, the reaction was stirred at -12 to -8°C for an additional 2 hours. Subsequently, the contents were warmed to 25°C and stirred for 3 hours. At the end of 3 hours, the contents were quenched with 100 g of cold water (to neutralize the catalyst). The remaining steps of the method were as desc...

Embodiment 2

[0077] Example 2 (inventive process using α, β, limo, sty-: feed at -10°C)

[0078] Except that the catalyst charge was 6.1 g and within 60 minutes the Alpha-pinene, beta-pinene, limonene, and styrene blend of (The weight ratio is 30:37:3:30) into the flask while keeping the polymerization temperature at -12—-8°C, using the same method as in Example 1. Immediately after the blend feed was complete, the reaction was warmed to 45°C and stirred for 90 minutes. The resulting resin had the following properties: softening point = 103.1°C, yield = 89.0%, clear color = 2 Gardner.

Embodiment 3

[0079] Example 3 (Inventive process using α, β, limo, sty-: feed at +5°C)

[0080] Except that the polymerization temperature is +5°C and within 60 minutes the α-pinene, β-pinene, limonene and styrene blend (The weight ratio is 30:37:3:30) into the flask, while keeping the polymerization temperature at +3—+7°C, using the same method as in Example 1. Immediately after the blend feed was complete, the reaction was warmed to 45°C and stirred for 90 minutes. The resulting resin had the following properties: softening point = 103.9°C, yield = 88.0%, clear color = 1+Gardner.

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Abstract

The present invention relates to styrenated terpene resin, as well as methods of making an using the same.

Description

technical field [0001] The present invention relates to polymers, articles comprising the polymers, and methods of making and using the polymers and articles. In another aspect, the invention relates to styrenated terpene resins, articles comprising the resins, and methods of making and using the resins and articles. Background technique [0002] Modified terpene resins such as styrenated terpene resins find use as tackifiers in the adhesives industry, especially in the fields of hot melt packaging, nonwovens and hot melt pressure sensitive adhesives. Such resins are terpenes obtained from pine trees (via sulfated turpentine, a by-product of the Kraft paper production process, or via gum turpentine, which is obtained from live pine trees. ) and styrene, or copolymers of terpenes and styrene obtained from citrus sources such as orange peel. Said useful terpenes obtained from pine trees for the synthesis of said copolymers have the general formula C 10 h 16 . Typical exam...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/30C08F236/20C08F4/14
CPCC08F236/20C08F212/08B32B7/12Y10T428/31931
Inventor 阿沛·K.·德斯潘德乔治·A.·罗科
Owner ARIZONA CHEM CO
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