Patent GB-343882-A (GB)
Title: Manufacture of soluble, fusible resins
IPC: C08G12/08
Filed: 1929-11-12
Abstract: Infusible and insoluble condensation products obtained from an aromatic amine and an aldehyde, particularly formaldehyde, are converted into fusible and soluble products by heating them with a fusible aldehyde condensation product, or a non-aldehydic component thereof, or a non-aldehydic fusible synthetic resin. For example, the infusible products may be heated with phenols, aromatic amines such as aniline, anhydroformaldehyde aniline, fusible phenol-aldehyde condensation products, fusible formaldehyde-amine condensation products such as are described in Specifications 342,325 and 342,767, or fusible condensation products of polyhydric alcohols with polybasic acids.  The products of the invention can be rendered infusible by compression with aldehydic hardening agents, and their properties may be modified by addition of fillers, softening agents, and agents imparting elasticity, such as other synthetic resins, oils or rubber.  According to the examples, (1) an infusible and insoluble aniline-formaldehyde condensation product prepared as described in Specification 284,589, [Class 2 (iii), Dyes &c.], is introduced into fused anhydroformaldehyde aniline; (2) a mixture of anhydroformaldehyde aniline and a product prepared as described in Specification 284,589 is fused by heating to 200 DEG  C.; (3) an infusible product obtained as described in Specification 342,767 is heated with phenol; the product may be rendered infusible by mixing with hexamethylenetetramine and compressing at 150 DEG  C.; (4) a product prepared as described in Specification 284,589 is introduced into a fused glycerol-phthalic-acid condensation product; (5) a liquid phenol-formaldehyde condensation product is heated with a product prepared as described in Specification 284,589. Specifications 266,358, 274,501, [both in Class 2 (iii), Dyes &c.], 342,326 and 342,723 also are referred to.ALSO:Infusible and insoluble condensation products obtained from an aromatic amine and an aldehyde, particularly formaldehyde, are converted into fusible and soluble products by heating them with a fusible aldehyde condensation product or a non-aldehydic fusible synthetic resin.  For example, the infusible products may be heated with fusible phenol-aldehyde condensation products, fusible formaldehyde-amine condensation products such as are described in Specifications 342,325, [Group IV], and 342,767, or fusible condensation products of polyhydric alcohols with polybasic acids.  The products of the invention can be rendered infusible by compression with aldehydic hardening agents, and their properties may be modified by addition of fillers, softening agents, and agents imparting elasticity, such as other synthetic resins, oils or rubber.  According to examples: (1) a product prepared as described in Specification 284,589 is introduced into a fused glycerol-phthalic-acid condensation product; (2) a liquid phenolformaldehyde condensation product is heated with a product prepared as described in Specification 284,589.  Specifications 266,358, 274,501, [both in Class 2 (iii), Dyes &c.], 342,326 and 342,723 also are referred to.