GB611700A - Improved manufacture of organo-siloxanes - Google Patents

Improved manufacture of organo-siloxanes

Info

Publication number
GB611700A
GB611700A GB14108/46A GB1410846A GB611700A GB 611700 A GB611700 A GB 611700A GB 14108/46 A GB14108/46 A GB 14108/46A GB 1410846 A GB1410846 A GB 1410846A GB 611700 A GB611700 A GB 611700A
Authority
GB
United Kingdom
Prior art keywords
oc2h5
radicals
mixture
heating
dioxane
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB14108/46A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Corning Glass Works
Original Assignee
Corning Glass Works
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Corning Glass Works filed Critical Corning Glass Works
Publication of GB611700A publication Critical patent/GB611700A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G77/00Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
    • C08G77/04Polysiloxanes
    • C08G77/06Preparatory processes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Silicon Polymers (AREA)

Abstract

A process of preparing new synthetic products from silanes having two mono-valent hydrocarbon radicals, which need not be the same, attached to each silicon atom through carbon-silicon linkages, the remaining valences of the silicon atoms being satisfied by hydrolysable radicals which are attached to the carbon atoms through other than carbon-silicon linkages is characterized by co-hydrolysing a mixture of at least two of said silanes which differ with respect to the chemical composition of that portion of their molecules exclusive of said hydrolysable radicals and condensing the hydrolysis product to obtain a copolymer thereof. The hydrocarbon radicals may be alkyl radicals; alicyclic radicals such as phenyl and mono- and poly-alkyl phenyls; naphthyl and poly-alkyl naphthyl; tetrahydronaphthyl and anthracyl; aralkyl radicals such as benzyl and phenylethyl; and alkenyl such as methallyl and allyl; and may be substituted by inorganic constituents such as halogen. Where all the hydrolysable radicals are halogen, dioxane is the preferred solvent, and where all are alkoxy, dilute acid or alkali is used. The products in some cases are hardened on heating. In examples: (1) aqueous dioxane is added to a mixture of (C6H5), SiCl2 and (C6H5) (C2H5)SiCl2. The liquid product hardens on heating; (2) a dioxane solution of (C6H5)(C2H5)S SiCl2 and (CH3)2Si(OC2H5)2 is hydrolysed by warming with aqueous dioxane; (3) (CH3)2Si(OC2H5) and (C6H5)2SiCl2 are hydrolysed and inter-condensed in dioxane solution; (4) a mixture of (C6H5.CH2)2SiCl2 and (CH3)2Si(OC2H5)2 is hydrolysed with 95 per cent ethyl alcohol followed by addition of water. The oily product forms a thermoplastic resin on heating; (5) a product prepared from (C6H5.CH2) (CH3) Si(OC2H5)2 and ( (CH3)2Si(OC2H5)2 by hydrolysis with alcohol and HCl is a viscous oil forming a waxy resin on heating; (6) a viscous liquid is obtained by hydrolysing with alcohol and HCl a mixture of (C6H5)(CH3) Si(OC2H5)2 and (CH3)2 Si(OC2H5)2.
GB14108/46A 1942-02-26 1946-05-09 Improved manufacture of organo-siloxanes Expired GB611700A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US611700XA 1942-02-26 1942-02-26

Publications (1)

Publication Number Publication Date
GB611700A true GB611700A (en) 1948-11-02

Family

ID=22034089

Family Applications (1)

Application Number Title Priority Date Filing Date
GB14108/46A Expired GB611700A (en) 1942-02-26 1946-05-09 Improved manufacture of organo-siloxanes

Country Status (1)

Country Link
GB (1) GB611700A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014112584A1 (en) * 2013-01-21 2014-07-24 セントラル硝子株式会社 Silicon compound containing hexafluoroisopropanol groups, method for producing same, and polymer compound obtained by polymerizing same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014112584A1 (en) * 2013-01-21 2014-07-24 セントラル硝子株式会社 Silicon compound containing hexafluoroisopropanol groups, method for producing same, and polymer compound obtained by polymerizing same
JP2014156461A (en) * 2013-01-21 2014-08-28 Central Glass Co Ltd Silicon compound containing hexafluoroisopropanol groups, method for producing the same, and polymer compound obtained by polymerizing the same

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