Now Available: Innovation in Polyurethanes 2015 (pdf).

A review of the polyurethane patent literature published during 2015

This 72 pages pdf e-book is an in-depth review of the new PU patent applications published in 2015.
The report discusses the main trends, main players and main technologies of recent industrial PU research.
Patent applications numbers are linked to WIPO, EPO or FPO for free full-text download.

Order the report (use the drop-down box to choose, single reader- , 10 reader- or corporate licence)
Contact me for other pricing options.

TOC2015Innovation 2015

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by Gerhard Bleys on February 23, 2016  •  Permalink
Posted in Uncategorized

Posted by Gerhard Bleys on February 23, 2016

https://purpatents.com/2016/02/23/now-available-innovation-in-polyurethanes-2015-pdf/

Spirocyclic Chain Extenders in TPU

Patent Title: THERMOPLASTIC POLYURETHANE WITH HIGH HEAT RESISTANCE

 Number/Link: W02016025421  WO2016025423

Applicant/Assignee: Lubrizol

Publication date: 18-02-2016

“Gist”: Use of spirocyclic chain extenders increases heat resistance of TPU

Why it is interesting: Both these patent applications are about the use of alkylene-substituted spirocyclic diols to improve the heat resistance of thermoplastic polyurethanes. In the WO..21 case the diol is used together with MDI and a polycarbonate diol resulting in high heat resistance TPU useful e.g for cable and wire coatings.  In the WO..23 case the spirocyclic diol is used together with MDI and a polyether polyol (PEGs) resulting in TPU with high heat resistance and moisture vapour transmission.  The spirocyclic diol used in the examples is 3,9-bis(1,1-dimethyl-2-hydroxyethyl)-2,4,8,10-tetraoxaspiro[5.5]undecane.

3,9-bis(1,1-dimethyl-2-hydroxyethyl)-2,4,8,10-tetraoxaspiro[5.5]undecane

3,9-bis(1,1-dimethyl-2-hydroxyethyl)-2,4,8,10-tetraoxaspiro[5.5]undecane

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by Gerhard Bleys on February 19, 2016  •  Permalink
Posted in Polyols, Thermoplastics
Tagged , , , , , , , , , , ,

Posted by Gerhard Bleys on February 19, 2016

https://purpatents.com/2016/02/19/spirocyclic-chain-extenders-in-tpu/

1K Dual Cure Polyurethane Adhesive

Patent Title: DUAL CURE 1K PU ADHESIVE FORMULATIONS USING MATRIX ENCAPSULATED POLYAMINES

 Number/Link: W02016022346

Applicant/Assignee: Dow

Publication date: 11-02-2016

“Gist”: Encapsulated polyamines are added to a moisture curing adhesive

Why it is interesting: One component (1K) PU adhesives are either NCO-ended prepolymers cured by atmospheric moisture, or OH-ended prepolymers containing encapuslated or blocked isocyanates and which are cured by heat.  According to this invention a 1K adhesive curable by both moisture and heat can be made by incorporating an encapuslated polyamine into a 1K mositure curing prepolymer. The amine is solid at room temperature (e.g. 1,12-dodecanediamine) and is mixed with a (semi-)crystalline termoplastic with a well defined melting point, e.g. a polyacrylate or polyolefine before being added to the adhesive. Dual cure 1K adhesives allow for heat-curing the adhesive at critical spots to providing stability to an assembly.  The adhesives are said to be especially useful for the automotive industry.

1,12-dodecanediamine

1,12-dodecanediamine

 

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by Gerhard Bleys on February 12, 2016  •  Permalink
Posted in Adhesives-Coatings
Tagged , , , , , , , ,

Posted by Gerhard Bleys on February 12, 2016

https://purpatents.com/2016/02/12/1k-dual-cure-polyurethane-adhesive/

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