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

Polymerization process using borane-amine complexes

A technology of complexes and boranes, applied in the direction of bonding methods, films/sheets without carriers, coatings, etc., to achieve good reactivity, prolong storage, and improve stability

Pending Publication Date: 2022-06-03
BOSTIK INC +3
View PDF16 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] However, in some cases, despite complexation of organoboranes with amines, the high reactivity of organoborane-amine complexes prevents effective control of their reactivity during monomer crosslinking (that is, They cross-link very quickly)

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
  • Polymerization process using borane-amine complexes
  • Polymerization process using borane-amine complexes
  • Polymerization process using borane-amine complexes

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0293] The table below includes various amines present in the borane-amine complexes (Reactions 1-22). According to these reactions, the polymerization was carried out with 10% borane-amine complex and at a temperature of 60°C.

[0294] The term "reaction time" is understood to mean the length of polymerization from the moment when the borane-amine complex is mixed with the polymerizable compound until the moment when the polymer is formed (the polymer formed is solid and the borane- The initial mixture of amine complex and polymerizable compound is liquid).

[0295] [Table 1]

[0296]

[0297] It was observed that the process according to the present invention allows the synthesis of methacrylic polymers in an efficient manner using different borane-amine complexes.

Embodiment 2

[0299]Next, the polymerization of styrene according to the process of the present invention was investigated. The table below includes various amines present in the borane-amine complexes (Reactions 23 and 24). The polymerization was carried out with 16% borane-amine complex and at a temperature of 60°C as described above.

[0300] [Table 2]

[0301] reaction amine Reaction time 23 Diisopropylamine 24h 24 tetramethylpiperidine 2h

[0302] It was observed that the process according to the present invention allows the use of different borane-amine complexes to synthesize styrene polymers in an efficient manner.

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
surface energyaaaaaaaaaa
thicknessaaaaaaaaaa
elastic modulusaaaaaaaaaa
Login to View More

Abstract

The invention relates to a process for polymerizing at least one radically polymerizable compound having at least one ethylenic bond in the presence of a complex of borane BH3 with an amine as a radical initiator, said process comprising the following steps: providing a complex of borane BH3 with an amine; and-contacting the complex with a composition comprising at least one radically polymerizable compound having at least one olefinic bond; wherein the polymerization is carried out in the absence of an oxidizing agent and / or a further radical initiator other than the borane BH3 and amine complex. The invention also relates to a composition comprising at least one radically polymerizable compound having at least one ethylenic bond and a complex of borane BH3 with an amine, and to the use of the composition as an adhesive for bonding two substrates together, wherein the composition is free of oxidizing agents and / or additional free radical initiators other than the borane BH3 and amine complexes.

Description

technical field [0001] The present invention relates to a process for polymerizing a free-radically polymerizable compound comprising at least one olefinic bond in the presence of a complex of borane with an amine. Background technique [0002] Radical polymerization is one of the most utilized polymerization processes in industry due to the diversity of polymerizable monomers, the ease of implementation and the diversity of synthetic processes utilized (bulk, emulsion, solution, suspension). [0003] It is known in the art to use organoborane for free radical polymerization of compounds containing olefinic bonds. However, due to the unstable and pyrophoric nature of organoborane, it must be complexed with amines to avoid oxidative decomposition. [0004] Typically, the presence of compounds such as oxidizing agents (eg peroxides) is necessary for initiation of polymerization prior to initiation of polymerization. However, these types of compounds are also very reactive, w...

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): C08F4/12C08F112/08C08F120/14C09J5/00C09J7/10C09D5/00
CPCC08F4/12C08F112/08C08F120/14C09J5/00C09J7/10C09D5/002C09J2423/166C09J2301/408C09J2427/006
Inventor G.米肖F.西蒙S.福基B.科林V.利奥塔德M.普切奥尔特
Owner BOSTIK INC