Laser transmission welding of plastics in medical device manufacturing - how to choose the right laser additive

Society of Plastics Engineers, Joining of Medical Plastics-Welding, Bonding, and Failure Prevention 2005

Volumn 2006, Issue , 2006, Pages 69-71

  Boehm, Arno J ^a   Edison, Michael ^b  

^a BASF SE   (Germany)

^b BASF CORPORATION   (United States)

Author keywords

Laser additive; Laser transmission welding of plastics; Mass absorptivity; Medical device manufacturing; Migration; Surface activity; Thermal stability; Toxicology

Indexed keywords

ADDITIVES; COST EFFECTIVENESS; JOINING; LASER BEAM WELDING; LIGHT ABSORPTION; THERMODYNAMIC STABILITY;

LASER ADDITIVES; LASER TRANSMISSION WELDING; MASS ABSORPTIVITY; MEDICAL DEVICE MANUFACTURING; SURFACE ACTIVITY; TOXICOLOGY;

PLASTICS;

EID: 33845935720     PISSN: None     EISSN: None     Source Type: Conference Proceeding    
DOI: None     Document Type: Conference Paper

References (6)

1. color neutrality in this context means either a neutral (grey) color, or a slight color easy to compensate to neutral grey by conventional color matching techniques
2. most organic NIR absorbers currently offered as laser welding additives have originally been developed for (electro)photographic, filter or marking applications with low thermostability requirements
3. for example please refer to the Clearweld™ process and PCT Patent Application WO 00/20157 (TWI); WO 03/059619 (Gentex)
4. additionally, sufficient thermostable additives can be selectively applied via inlay, in-mould design, coextrusion or 2-stage injection molding techniques
5. Y. Geerts, H. Quante, H. Platz, R. Mahrt, M. Hopmeier, A. Boehm, K. Muellen, J. Mater. Chem. 8, 2357-2369 (1998);
6. US Patents 5,986,099, 6,124,458 (BASF + MPG)