ES2535A2 -
Improvements introduced in the new continuous brake for iron roads, operating by compressed air or by automatic vacuum, regulator and moderator.
- Google Patents
Improvements introduced in the new continuous brake for iron roads, operating by compressed air or by automatic vacuum, regulator and moderator.
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.)
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WENGER ADOLPHE
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WENGER ADOLPHE
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Priority to ES2535ApriorityCriticalpatent/ES2535A2/en
Publication of ES2535A2publicationCriticalpatent/ES2535A2/en
ES2535A1882-06-201882-06-20
Improvements introduced in the new continuous brake for iron roads, operating by compressed air or by automatic vacuum, regulator and moderator.
ExpiredES2535A2
(en)
Process to form a modified phenolic resin composition by combining a catalyst, formaldehyde, water and phenol that reacts to a tolerance to water between 150-1000% forming an intermediate composition, adding 2.5 to 7.5% by weight resocinol and forming a resorcinol modified phenolic resin composition.