Polybenzoxazine composition

Technology of a polymer composition, benzoxazine, applied in the field of preparation of polymer

Active Publication Date: 2015-07-15
3M INNOVATIVE PROPERTIES CO
View PDF20 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the resulting polybenzo Oxyzine-epoxy hybrids still retain many of the limitations of epoxies, necessitating giving up many of their valuable properties (such as the toughness of epoxies)

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
  • Polybenzoxazine composition
  • Polybenzoxazine composition
  • Polybenzoxazine composition

Examples

Experimental program
Comparison scheme
Effect test

example

[0158] All parts, percentages, ratios, etc. in the examples are by weight unless otherwise indicated.

[0159] The amount of catalyst used in the binder is determined by equivalents (eq) based on the number of moles of reactive groups per mole of reactant molecules, for example, 2 equivalents of a difunctional reactant represents one mole of that reactant, and one A mole of trifunctional reactant would represent 3 equivalents of that reactant. The catalyst was treated as a monofunctional catalyst.

[0160] A double dash symbol in the table indicates that the sample was not tested.

[0161] Materials were purchased from Sigma-Aldrich, Milwaukee, WI unless otherwise stated.

[0162] testing method

[0163] Differential Scanning Calorimetry (DSC Analysis) of Curing

[0164] The thermal properties of the composition during curing were determined by placing an amount of the composition in an open aluminum pan in a differential scanning calorimeter (DSC) and heating from 25°...

example 1

[0215] Powders of finely ground BZ-1 (23.1) and sulfur (3.2 grams) were mixed in an equimolar ratio and stirred and shaken in a Wig-L-Bug shaker for approximately 1 minute. Approximately 15.4 milligrams (mg) of the mixture was heated to 320°C in a DSC (Seiko) as described above. The DSC trace showed an exotherm with a high temperature peak at about 211°C, a cure onset temperature of about 140°C, and a total energy released during cure of 221 J / gram. The trace also shows a less sharp endotherm with a peak at about 113°C, which corresponds to the recorded melting point of sulfur.

example 2

[0217] BZ-2 (33.3 grams) and finely ground sulfur (3.2 grams) were mixed in an equimolar ratio and stirred vigorously for about 1 minute. Approximately 20.3 mg of the mixture was heated to 320°C in DSC as described in Example 1. The DSC trace shows an exotherm with double high temperature peaks at about 170°C and 225°C and a cure onset temperature of about 130°C. The total energy released during curing was 221 J / gram. The trace also shows a less sharp endotherm with a peak at about 113°C, which corresponds to the recorded melting point of sulfur.

[0218] Comparative Examples C1–C2

[0219] About 4.4 mg of BZ-1 (C1 ) and about 12.0 mg of BZ-2 (C2) were heated to 320° C. in DSC as described in Example 1 . The respective DSC traces of C1 and C2 showed peak exothermic temperatures of 240°C and 246°C, curing onset temperatures of 190°C and 190°C, and energy released during curing of 323 and 113 J / g, respectively.

[0220] Examples 3-8, Comparative Example C1A

[0221] Fin...

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
glass transition temperatureaaaaaaaaaa
glass transition temperatureaaaaaaaaaa
glass transition temperatureaaaaaaaaaa
Login to view more

Abstract

A polymerizable composition comprising a benzoxazine compound and a catalyst is described. The polymerizable composition may be cured to produce compositions useful in coating, sealants, adhesive and many other applications.

Description

technical field [0001] The present invention describes a method for preparing poly(benzo oxazine) method. Background technique [0002] Benzo oxazines and benzos Compositions of Benzoxazines are known (see e.g. U.S. Patents 5,543,516 and 6,207,786 to Ishida et al; Resins”, Polymer, 41, 7941-49 (2000) (S.Rimdusit and H.Ishida, “based on benzo Development of a new class of electronic packaging materials based on the ternary system of oxazine, epoxy resin and phenolic resin", Polymers, Vol. 41, pp. 7941-7949, 2000); and H.Kimura et al., "New Thermosetting Resin from Bisphenol A-based Benzoxazine and Bisoxazoline", J.App.Polym.Sci., 72, 1551-58 (1999) (H.Kimura et al., "From Bisphenol A-based Benzoxazine and Bisoxazoline zine and bis oxazolines", Journal of Applied Polymer Science, Vol. 72, pp. 1551-1558, 1999). [0003] US Patent 7,517,925 (Dershem et al.) describes benzo oxazine compounds and benzos A thermosetting resin composition prepared from an oxazine co...

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): C08G73/02C08G73/06C08K5/357C08L79/02C08L79/04C08L51/04
CPCC08K5/357C08L79/04C08L51/04C08G67/00C08G73/0233C08G73/06C08G65/26C08L79/02C08G65/2612C08G65/2627C09D179/04C09J179/04
Inventor D·萨尔尼科夫I·格罗迪舍R·J·韦布
Owner 3M INNOVATIVE PROPERTIES CO
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap