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High Molecular Weight Polyether Carbonate Polyol

A technology of polyether carbonate and polyol, which is applied in the direction of polymer adhesive additives, adhesives, adhesive additives, etc., and can solve the problem of unprepared, difficult to use, unobtrusive polyether carbonate polyol And other issues

Active Publication Date: 2022-02-22
REPSOL SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] From the prior art, more branched polyethercarbonate polyols are hardly noticeable and have never been prepared, probably because they may present practical difficulties in their use due to derivatization and high molecular weight

Method used

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  • High Molecular Weight Polyether Carbonate Polyol
  • High Molecular Weight Polyether Carbonate Polyol
  • High Molecular Weight Polyether Carbonate Polyol

Examples

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preparation example Construction

[0033] DMC catalyst preparation method can also comprise:

[0034] c) separating the catalyst from the slurry obtained in step b); and

[0035] d) Washing the solid catalyst obtained in step c) with a solution comprising optionally further polyether polyol ligands, for example up to 10% by weight of polyether polyol ligands.

[0036] Step a)

[0037] This step can be performed by any method known in the art for the synthesis of DMC catalysts. Preferably, this step can be carried out by reacting a water-soluble metal salt (in excess) and a water-soluble metal cyanide salt in aqueous solution in the presence of a polyether polyol ligand and an organic complexing agent.

[0038] Preferably, aqueous solutions of the water-soluble metal salt and the water-soluble metal cyanide salt are first reacted using efficient mixing in the presence of an organic complexing agent to produce a catalyst slurry. The metal salt is used in excess; for example, the molar ratio of metal salt to me...

Embodiment 1

[0143] Embodiment 1: the preparation of DMC catalyst

[0144] Based on the method disclosed in Example 2 of WO2012 / 156431A1, a typical example includes Step 1, Step 2 and Step 3 as described below.

[0145] step 1

[0146] Potassium hexacyanocobaltate (7.5 g) was dissolved in deionized water (100 ml) in a beaker (Solution A). Zinc chloride (75 g) and tert-butanol TBA (75 mL) were dissolved in deionized water (275 mL) in a second beaker (Solution B).

[0147] Solution B was heated at a temperature of 50°C. Subsequently, solution A was slowly added to solution B for 30 minutes while stirring at 400 rpm. The zinc chloride and TBA aqueous solutions were combined with the cobalt salt solution using a stirrer to intimately and efficiently mix the two aqueous solutions. The mixture was maintained at the same temperature for a post-reaction for 30 minutes to form a slurry of zinc hexacyanocobaltate.

[0148] A third solution (solution C) was prepared by dissolving 400 molecular...

Embodiment 2

[0155] Embodiment 2: the general procedure of preparing PoPC

[0156] Following this general procedure, PoPC was prepared using a glycerol-based polymer polyol initiator and propylene oxide (PO) as the alkylene oxide.

[0157] Preparation of prepolymer

[0158] The prepolymer was prepared as described in Example 3 of WO2015 / 022290.

[0159] Glycerol (130g) was charged into the reactor, and the 2 Purged and dehydrated at 130 °C (until H 2 O4 (2 g, 50% by weight in water) was added to the reactor. Feed of propylene oxide (868 g) was started slowly at atmospheric pressure, flow rate was controlled to control temperature (50°C) and pressure (less than 1 bar). As the reaction progresses, it slows down, increasing the pressure (control the pressure not to exceed 3 bar). When the reaction was complete, the mixture was left for 2 hours (post reaction). Subsequently, at 50 °C in N 2 Vacuum was applied under stripping for 1 hour to remove residual monomer. Then, the reactor was ...

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Abstract

The present invention relates to polyether carbonate polyols having a nominal functionality of 3 or greater, an equivalent molecular weight of 20,000 Da to 500,000 Da, and based on the total weight of the polyether carbonate polyol, CO 2 The content is 0.5% by weight to 35% by weight. The polyether carbonate polyols of the present invention have adhesive properties and impact modification properties.

Description

technical field [0001] The present invention relates to high equivalent molecular weight polyether carbonate polyols (PoPC) with improved properties. Background technique [0002] There is always a need in the industry for alternative or improved polymers, including alternatives to current impact modifiers. These substances increase the toughness of polymers and are essential for many applications. The most commonly used family of impact modifiers are styrene / butadiene copolymers (SBS copolymers) or acrylonitrile-butadiene-styrene copolymers (ABS copolymers). Many efforts have been made to provide modified derivatives of this family as impact modifiers. For example, methyl methacrylate-butadiene-styrene (MBS) is disclosed in US2011034612A. US6630527 discloses polyester / polycarbonate compositions comprising ABS type impact modifiers with improved UV resistance. However, these rubbers are expensive to produce and unsuitable for some applications, and alternatives are neede...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G64/02C08G64/34C09J11/08C08L23/00C08L25/06C09J169/00C08L67/04C08L69/00
CPCC08G64/0208C08G64/34C09J169/00C08L23/00C08L25/06C08L67/04C08L69/00C08L2201/10C08G64/183C08L23/02C08L2205/04
Inventor 乔斯·罗曼·加尔达梅斯佩娜马里亚·多洛雷斯·布兰科冈萨雷斯索尼娅·塞古拉费尔南德斯劳拉·马林佩拉莱斯卡罗琳娜·鲁伊斯奥尔塔安娜·伊莎贝尔·雷亚尔格雷罗莫尼卡·加西亚鲁伊斯
Owner REPSOL SA
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