POLYAMIDE COMPOSITION FOR THE PRODUCTION OF WELDABLE MOULDED BODIES

    公开(公告)号:CA3083050A1

    公开(公告)日:2019-05-31

    申请号:CA3083050

    申请日:2018-11-22

    Applicant: BASF SE

    Abstract: The invention relates to a polyamide composition, containing a) 30 to 99.9 wt% of a polyamide mixture, as component A), of aliphatic polyamide A1) and aliphatic copolyamide or terpolyamide A2), the weight ratio of A1) to A2) being 55:45 to 95:5, b) 0 to 60 wt% glass fibres as component B), c) 0 to 2 wt% nigrosin as component C), d) 0.1 to 10 wt% of at least one polyvalent alcohol having more than two hydroxyl groups and a numerical average of the molecular weight (Mn) of less than 2000 as component D), e) 0 to 20 wt% of additional additives as component E), the constituent amounts, the sum of which is 100 wt%, relating to the overall composition.

    METHOD FOR WELDING MOLDED BODIES
    4.
    发明专利

    公开(公告)号:CA3021583A1

    公开(公告)日:2017-11-23

    申请号:CA3021583

    申请日:2017-05-05

    Applicant: BASF SE

    Abstract: The invention relates to a method for welding a first molded body (1a) to a second molded body (1b). A tool (5) is used for this purpose, which has a first outer surface (6a) and a second outer surface (6b), wherein the first outer surface (6a) comprises a channel (7a) and the second outer surface (6b) comprises a channel (7b). The end (2a) of the first molded body (1a) is heated by a hot gas while the end (2a) is at a distance (Xa) from the channel inlet plane (14a) in the range of 3 mm outside of the channel (7a) to 10 mm inside the channel (7a). The joining surface (2b) of the second molded body (1b) is also heated by a hot gas while the joining surface (2b) is at a distance (Xb) from the channel inlet plane (14b) in a range of 3 mm outside of the channel (7b) to 10 mm inside the channel (7b). Then the heated end (2a) and the heated joining surface (2b) are brought in contact with each other and cooled and a weld seam is formed between the first molded body (1a) and the second molded body (1b). The invention further relates to the welded molded body that can be obtained in accordance with the method according to the invention.

Patent Agency Ranking