Treatment agent for core wires for transmission belts, and core wire and method for producing same
US11859078B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 6, 2020 |
| Grant date | Jan 2, 2024 |
| Priority date | — |
| Expiry date | Jan 15, 2041 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16G5/20
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An aqueous treatment agent for preparing a cord by treating an untreated yarn for a power transmission belt includes at least a first aqueous treatment agent. The first aqueous treatment agent contains an epoxy resin (A), a polycarbonate polyol (B), and a blocked polyisocyanate (C). The epoxy resin (A) may contain a bisphenol type epoxy resin (A1). The polycarbonate polyol (B) may contain a polycarbonate diol (B1). The blocked polyisocyanate (C) may contain at least one blocked polyisocyanate selected from the group consisting of an aliphatic polyisocyanate or derivatives thereof and an aromatic polyisocyanate and having a dissociation temperature of 120° C. to 180° C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.